Re: [mailop] Checking existence of recipients

2025-06-26 Thread Bill Cole via mailop
ANNOT verify the correctness of the data without contacting the end > user. It's technically impossible. Period. That is all that needs saying about this. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addre

Re: [mailop] Checking existence of recipients

2025-06-26 Thread Bill Cole via mailop
in and bad-collecting process objections): Our customer collect e-mail addresses written over *paper signed contracts* Those addresses are USELESS. Doing anything with them puts you at reputational risk. Your customer needs to redesign their processes. -- Bill Cole b...@scconsult.co

Re: [mailop] iphmx.com - who owns that server (SPF fault)

2025-06-17 Thread Bill Cole via mailop
icity. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] iphmx.com - who owns that server (SPF fault)

2025-06-17 Thread Bill Cole via mailop
. Returning loopback values in DNS has a standardized widely-used function that demands the unimpeded receipt of loopback answers to A and queries. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently

Re: [mailop] iphmx.com - who owns that server (SPF fault)

2025-06-17 Thread Bill Cole via mailop
all between SPF client and server, drops the response packet with "UDP > WAN DROP: DNS Rebinding protection" Your firewall is misconfigured. Dropping any DNS response packets that refer to a loopback is a recipe for breakage, particularly if you run a mail server b

Re: [mailop] iphmx.com - who owns that server (SPF fault)

2025-06-17 Thread Bill Cole via mailop
.0.0/12 -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Yahoo failing to comply with their own SPF records

2025-06-05 Thread Bill Cole via mailop
ser complain about mail from them, despite a steady flow from their nets using many different sender domains. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire _

Re: [mailop] Is there a way to block domains registered at a specific registrar with SpamAssassin or similar

2025-05-23 Thread Bill Cole via mailop
. Right. The situation should be getting better over time, but ccTLD registries are resistant to community pressure. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Ava

Re: [mailop] Is there a way to block domains registered at a specific registrar with SpamAssassin or similar

2025-05-23 Thread Bill Cole via mailop
m.', '127.0.1.1') describe PCCC_FROM_BAD_NSDNS server of From address found on PCCC WILD RBL (https://raptor.pccc.com/RBL) tflags PCCC_FROM_BAD_NSnet score PCCC_FROM_BAD_NS2.0 priority PCCC_FROM_BAD_NS -100 -- Bi

Re: [mailop] Icewarp and "New" Outlook

2025-05-22 Thread Bill Cole via mailop
On 2025-05-22 at 17:00:20 UTC-0400 (Thu, 22 May 2025 21:00:20 +) Slavko via mailop is rumored to have said: Dňa 22. mája 2025 19:47:23 UTC používateľ Bill Cole via mailop napísal: For implicit TLS (as on ports 443, 465, 587, 993, 995) the client initiates the TLS handshake immediately

Re: [mailop] Icewarp and "New" Outlook

2025-05-22 Thread Bill Cole via mailop
esult ? Typical m$ . "Now you all align with what we say is right ... or else" ? For implicit TLS (as on ports 443, 465, 587, 993, 995) the client initiates the TLS handshake immediately upon connection rather than waiting for the server to send something. -- Bill Cole b...@scconsu

Re: [mailop] What is the main objective of DKIM? Preventing From: Header spoofing?

2025-05-15 Thread Bill Cole via mailop
od that it is *never* really safe to treat the non-existence of a DKIM signature with the correct domain to be a positive indication of spoofing. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult

Re: [mailop] GoDaddy having issues ?

2025-05-14 Thread Bill Cole via mailop
st mailop@mailop.org https://list.mailop.org/listinfo/mailop ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.

Re: [mailop] Spamgun

2025-05-12 Thread Bill Cole via mailop
er because any 5xy reply at connect should kill at least the current message. You can expect bulk mail ESPs to ignore, misinterpret, or intentionally misunderstand reply codes when it is most convenient for them to do so. -- Bill Cole b...@scconsult.com or billc...@apache.org (A

Re: [mailop] Google Rejecting Mail from Static IP with 550-5.7.1

2025-05-02 Thread Bill Cole via mailop
oogle who have said helpful things about how to get delivered by Google, generally rephrasing Google's own documentation. I don't believe we've seen them recently. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.sccons

Re: [mailop] gmail dkim oddity

2025-04-08 Thread Bill Cole via mailop
hes, it passes: the message is unchanged between the *signer* and you. > The message headers inserted by google also show SPF and DKIM passes. > > Anybody have any idea what's going on? Google is wrong here. They're doing DMARC wrong. -- Bill Cole ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Handling certificate expiration (Was: Re: Google and Spam detection)

2025-04-07 Thread Bill Cole via mailop
On 2025-04-07 at 12:59:52 UTC-0400 (Tue, 8 Apr 2025 02:59:52 +1000) Viktor Dukhovni via mailop is rumored to have said: On Mon, Apr 07, 2025 at 12:47:33PM -0400, Bill Cole via mailop wrote: On 2025-04-07 at 09:38:56 UTC-0400 (Mon, 7 Apr 2025 06:38:56 -0700 (PDT)) Mark Milhollan via mailop

Re: [mailop] Handling certificate expiration (Was: Re: Google and Spam detection)

2025-04-07 Thread Bill Cole via mailop
use *any* certificate in a SMTP TLS session. Very few servers request them and they are not needed for encrypting traffic. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire

Re: [mailop] sslv3 alert bad certificate and the fix.

2025-04-05 Thread Bill Cole via mailop
ing ACME for auto-renewal, including but not limited to Let's Encrypt. I use LE for multiple mail systems and web servers and have for years. Aside from their (now complete) transition off of an expired secondary issuer CA, there have been no problems. -- Bill Cole b...@scconsult.com

Re: [mailop] Validity (return path blocklist)

2025-04-05 Thread Bill Cole via mailop
of spam. With all that said, the Validity checks and rules remain in SpamAssassin despite complaints because historically some people have found them useful and may have created local meta-rules that we won't break impulsively. -- Bill Cole b...@scconsult.com or billc...@apache.or

Re: [mailop] Validity (return path blocklist)

2025-04-05 Thread Bill Cole via mailop
ming us about how low the entity now called "Validity" has sunk. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop m

Re: [mailop] Unexpected botnet hybrid post-quantum TLS key-exchange

2025-03-30 Thread Bill Cole via mailop
On 2025-03-30 at 00:03:23 UTC-0400 (Sun, 30 Mar 2025 15:03:23 +1100) Viktor Dukhovni via mailop is rumored to have said: > I would not have expected botnets to be quite so bleeding edge in their Spammers, like pornographers, have always been bleeding-edge tech adopters. -- Bill Cole

Re: [mailop] This address does not send an unsigned return path.

2025-03-28 Thread Bill Cole via mailop
On 2025-03-28 at 14:59:36 UTC-0400 (Fri, 28 Mar 2025 19:59:36 +0100) Marco Moock via mailop is rumored to have said: Am Fri, 28 Mar 2025 12:38:02 -0400 schrieb Bill Cole via mailop : On 2025-03-28 at 11:32:50 UTC-0400 (Fri, 28 Mar 2025 16:32:50 +0100) Marco Moock via mailop is rumored to

Re: [mailop] This address does not send an unsigned return path.

2025-03-28 Thread Bill Cole via mailop
; *header* address. Most likely they have implemented BATV to reject bogus bounces. BATV assures that all mail with a "From" header of postmas...@dorfdsl.de will have a SMTP sender address with a keyed modification of the "real" address. -- Bill Cole b...@scconsult.co

Re: [mailop] Yahoo sending invalid ARF reports due to 8-bit content

2025-03-19 Thread Bill Cole via mailop
https://list.mailop.org/listinfo/mailop -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Landed on a blacklist that is out of order

2025-03-09 Thread Bill Cole via mailop
ar. > However and OTOH, way more people than one would initially think actually > seem to be striving to be good and well behaved citizens and community > members - and I say that as a sceptic with a tendency to pessimism. > > So in short: in dubio pro reo. Here when it comes to stick

Re: [mailop] Landed on a blacklist that is out of order

2025-03-07 Thread Bill Cole via mailop
of networks still using it? On 07.03.25 12:21, Bill Cole via mailop wrote: That definitely DID NOT HAPPEN, because it is intrinsically impossible. Why do you think that The word "all" has a meaning. As someone who receives abuse contact mail for multiple RIR-allocated bl

Re: [mailop] Landed on a blacklist that is out of order

2025-03-07 Thread Bill Cole via mailop
On 2025-03-07 at 06:04:25 UTC-0500 (Fri, 7 Mar 2025 12:04:25 +0100) Thomas Walter via mailop is rumored to have said: > AFTER they > did contact all the abuse contacts of networks still using it? That definitely DID NOT HAPPEN, because it is intrinsically impossible. -- Bill C

Re: [mailop] Understanding MX Preference

2025-02-14 Thread Bill Cole via mailop
been promising it "soon" for 5+ years. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@m

Re: [mailop] Q re. RFC 5322, sec. 2.3., wrt. completely empty mail bodies

2025-01-25 Thread Bill Cole via mailop
On 2025-01-25 at 15:53:28 UTC-0500 (25 Jan 2025 15:53:28 -0500) John Levine via mailop is rumored to have said: It appears that Bill Cole via mailop said: On 2025-01-25 at 13:36:52 UTC-0500 (Sat, 25 Jan 2025 19:36:52 +0100) Carsten Schiefner via mailop is rumored to have said: Dear all

Re: [mailop] Q re. RFC 5322, sec. 2.3., wrt. completely empty mail bodies

2025-01-25 Thread Bill Cole via mailop
is being used by someone not worth communicating with. OK, maybe that's a little harsh, but empty mail is rude. -- Bill Cole ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Service specific passwords ? - was Re: Suggested best practice for changing ISP MTA IPs?

2025-01-10 Thread Bill Cole via mailop
be authorized for each provider. Beyond the dance that a MUA has to choreograph to do OAuth (i.e. use a web browser to obtain an auth token) the process of getting a MUA registered with each major OAuth provider can be quite onerous and may be infeasible for free software. -- Bill Cole b

Re: [mailop] Google Workspace subdomain spam

2025-01-03 Thread Bill Cole via mailop
this list. And I know many people who smoke tobacco. I would not let them smoke in my home. Orgs make poor choices all the time. It's not your responsibility to accommodate them. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and

Re: [mailop] This is ridiculous

2024-12-27 Thread Bill Cole via mailop
bot-managed behemoth mail systems is naive. Demanding it loudly for many years as a matter of principle is performance art. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire

Re: [mailop] How much mail is spam?

2024-12-10 Thread Bill Cole via mailop
dolia is real :) So there you have it, 12% of delivery attempts on one system and 100% of delivery attempts on another. I believe that reasonably covers the range one can expect over a decent sample period. Right. Depending on what system you look at and how you count, it can be almos

Re: [mailop] whois's netname

2024-11-22 Thread Bill Cole via mailop
requires either a whois client that natively understands "-T" or a trick to pass the flag along raw to the whois server, e.g.: whois -h whois.ripe.net -- -T inetnum hd-net It also requires a RIPE-like whois server. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @

Re: [mailop] whois's netname

2024-11-21 Thread Bill Cole via mailop
fo using the "whob" utility that is part of the lft (Layer Four Traceroute) package, which provides info from default-free routing tables. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Availab

Re: [mailop] addressing a mail server running in virtual space

2024-11-21 Thread Bill Cole via mailop
onvince others to work with your alternative protocol. Maybe seek out a relevant IETF WG? I wish you good luck, even though I think the whole idea is a pointless waste of energy which will go nowhere. If you actually get anywhere with the concept, it might be interesting. -- Bill Cole b

Re: [mailop] SMTP TLS Reports for forged senders.

2024-11-16 Thread Bill Cole via mailop
/rfc8460. Intimately related to MTA-STS, RFC8461. It can also be used with DANE, but I don't know of anyone doing so. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For

Re: [mailop] Gmail not accepting the spam they sent themselves

2024-11-04 Thread Bill Cole via mailop
On 2024-11-04 at 10:06:35 UTC-0500 (Mon, 4 Nov 2024 16:06:35 +0100) Carsten Schiefner via mailop is rumored to have said: On 04.11.2024 14:52, Bill Cole via mailop wrote: On 2024-11-04 at 04:15:03 UTC-0500 (Mon, 4 Nov 2024 10:15:03 +0100) Carsten Schiefner via mailop is rumored to have said

Re: [mailop] Gmail not accepting the spam they sent themselves

2024-11-04 Thread Bill Cole via mailop
for their jobs, for which they are clearly unqualified. I see no reason to coddle people who have refused to learn the basics of their job. Let them suffer. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not

Re: [mailop] Google Rejecting Mails as Spam

2024-10-25 Thread Bill Cole via mailop
On 2024-10-25 at 17:46:37 UTC-0400 (25 Oct 2024 17:46:37 -0400) John Levine via mailop is rumored to have said: It appears that Bill Cole via mailop said: default._domainkey.valar.uk.net. 300 IN TXT "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr51Z83Plk5XDJOCp8wk7

Re: [mailop] Google Rejecting Mails as Spam

2024-10-25 Thread Bill Cole via mailop
uh...@fantomas.sk ; http://www.fantomas.sk/ > Warning: I wish NOT to receive e-mail advertising to this address. > Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. > I wonder how much deeper the ocean would be without sponges. > ___ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop -- Bill Cole ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Mimecast DKIM Sender Invalid

2024-10-22 Thread Bill Cole via mailop
discussion on the Postfix-Users mailing list last year. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop

Re: [mailop] SPF fragility vs. utility

2024-10-18 Thread Bill Cole via mailop
ates the URL in the Address bar and changing that to show full URLs is hidden in the "Advanced Settings" preference pane. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire

Re: [mailop] SPF fragility vs. utility

2024-10-18 Thread Bill Cole via mailop
stagnate and start sprouting weird little non-features like "pretty" rendering of the From header. And HTML mail. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently

Re: [mailop] SPF fragility vs. utility

2024-10-18 Thread Bill Cole via mailop
sender is preserved in the Reply-To here (and on most lists using Mailman today.) -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire

Re: [mailop] SPF alignment when sending from G Suite

2024-10-11 Thread Bill Cole via mailop
dentifier be exposed in any headers. It's also not a default constraint in many (any?) MTAs. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire _

Re: [mailop] [EXTERNAL] onmicrosoft.com customers forging @microsoft.com addresses for phishing

2024-09-20 Thread Bill Cole via mailop
retty good job at identifying a large subset of spam and rerouting it to go through identifiable spam relays. This offloads support costs and legal risks of blocking to receivers. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsul

Re: [mailop] [EXTERNAL] onmicrosoft.com customers forging @microsoft.com addresses for phishing

2024-09-20 Thread Bill Cole via mailop
tagged as "SPM" are purely theoretical. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop

Re: [mailop] [E] Re: Super dumb gmail request ...

2024-08-27 Thread Bill Cole via mailop
hope that helps. Probably not... -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] [E] Re: Super dumb gmail request ...

2024-08-27 Thread Bill Cole via mailop
ptance over the years has masked that fact, but it has not changed. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list ma

Re: [mailop] How should we respond in this situation

2024-08-23 Thread Bill Cole via mailop
humanitarian responsibility? YOU NEED TO GET A LAWYER WHO IS WORKING FOR YOU, NOW. No one here knows the details of your situation, not even which country's laws may apply to you. No one here can provide you an answer that you can safely trust. -- Bill Cole b...@scconsult.com or billc...@apach

Re: [mailop] How should we respond in this situation

2024-08-23 Thread Bill Cole via mailop
, you had best consult a lawyer whom you pay to give you correct legal advice. There's no one like that here. (Anne Mitchell is a smart lawyer, but she's not YOUR lawyer.) -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scc

Re: [mailop] [E] Anyone from sbcglobal.net

2024-08-01 Thread Bill Cole via mailop
ilop@mailop.org https://list.mailop.org/listinfo/mailop ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scco

Re: [mailop] Echospoofing

2024-07-31 Thread Bill Cole via mailop
t: reactive security rather than preventative and reliance on customers' technically weak staff to make a potentially breaking config change to a function that they clearly misunderstood when it was set up. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpy

Re: [mailop] safe-mail.net

2024-07-12 Thread Bill Cole via mailop
ing a requirement of the SMTP specification. Any SMTP client which does not fall back to the A record when no MX records exists is fundamentally broken. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Curr

Re: [mailop] getting unblocked at outlook?

2024-07-11 Thread Bill Cole via mailop
sults at the first level, and ultimate success are opaque. They may as well be magic. I have had success with this multiple times over he past few years, but many others here and in other fora seem not to have been as fortunate. No one has ever claimed to have an explanation for why a S3150 blo

Re: [mailop] Domains discrimination

2024-07-11 Thread Bill Cole via mailop
innocent parties who chose their domains poorly usually focus on how their obscure little TLD doesn't appear on the list of TLDs sourcing a lot of spam. That's an irrelevancy, as no system is receiving all spam. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @g

Re: [mailop] Domains discrimination

2024-07-11 Thread Bill Cole via mailop
uot; sample. The skews of each site's user populations results in the nature of their spam and ham being unique. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) No

Re: [mailop] Domains discrimination

2024-07-11 Thread Bill Cole via mailop
On 2024-07-10 at 15:11:01 UTC-0400 (Wed, 10 Jul 2024 12:11:01 -0700) Mark E Jeftovic via mailop is rumored to have said: legit crypto There's some sort of typo there but I'm not sure what you could possibly have meant by this phrase... -- Bill Cole b...@scconsult.co

Re: [mailop] Cloud hosts for responsible mail servers?

2024-07-11 Thread Bill Cole via mailop
what they say as an answer to any question. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org https

Re: [mailop] [E] Re: AT&T Block

2024-07-09 Thread Bill Cole via mailop
ny mail from them at all in the lifetime of the Internet. Both were in an ARIN-allocated /21 network with accurate contact info. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not C

Re: [mailop] too many bad IP blocked

2024-06-21 Thread Bill Cole via mailop
want to block broadly or narrowly. One effect I have seen from doing that has been an eventual reduction in previously unseen attack sources. They are not just bouncing off the packet filter, some attackers are clearly responding to the feedback of failed connections by not coming back to m

Re: [mailop] too many bad IP blocked

2024-06-21 Thread Bill Cole via mailop
drop rules should be unchallenging for a modern system. I've got that and more my 2 main mail systems without any problems. It might be an issue with a severely cpu or RAM-constrained system, but those aren't really fit for mail anyway. -- Bill Cole b...@scconsult.com or billc...@apach

Re: [mailop] Anyone from Prodigy

2024-05-29 Thread Bill Cole via mailop
p.org https://list.mailop.org/listinfo/mailop -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org https://list

Re: [mailop] (Mis)use of DKIM's length tag and it's impact on DMARC and BIMI

2024-05-18 Thread Bill Cole via mailop
BIMI specification already contains such exceptions, like DMARC quarantine policies that must be ignored if they include a pct value of less than 100, so this wouldn’t be completely new grounds. BIMI seems like a very gentle tool for operational pressure. -- Bill Cole b...@scconsult.com or

Re: [mailop] Does iCloud accept forwards?

2024-05-18 Thread Bill Cole via mailop
he only obvious source, but you'd have to find out from them. Whatever they are doing is wrong. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire __

Re: [mailop] (Mis)use of DKIM's length tag and it's impact on DMARC and BIMI

2024-05-18 Thread Bill Cole via mailop
suspects who keep on using it. Who uses it? I'm not seeing it at all in my recent personal "mail worth keeping" corpus except for one idiosyncratic case of a sender who always uses it with the full message length. -- Bill Cole b...@scconsult.com or billc...@apache.org (

Re: [mailop] Reason for being listed at Spamhaus CSS and XBL unclear

2024-04-19 Thread Bill Cole via mailop
On 2024-04-19 at 07:21:47 UTC-0400 (Fri, 19 Apr 2024 12:21:47 +0100) Sebastian Arcus via mailop is rumored to have said: On 18/04/2024 14:05, Marco Moock via mailop wrote: Am 18.04.2024 schrieb Bill Cole via mailop : I can't say that Spamhaus lists IPs that engage in the abusive practi

Re: [mailop] Reason for being listed at Spamhaus CSS and XBL unclear

2024-04-18 Thread Bill Cole via mailop
)? Grateful for any hints - as it would be useful to narrow down a bit what am I looking for. ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpy

Re: [mailop] Reason for being listed at Spamhaus CSS and XBL unclear

2024-04-18 Thread Bill Cole via mailop
erver indistinguishable from nearby compromised Windows machines and IoT devices. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo@toad.social and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ m

Re: [mailop] Anyone from Google - Sudden Gmail bounces??

2024-03-31 Thread Bill Cole via mailop
amhaus listings, so this is likely to indicate that both organizations have independently deemed your IP to be badly behaving. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Ava

Re: [mailop] Debt Collection Client Email Servers

2024-03-25 Thread Bill Cole via mailop
slightly resembles a service that anyone in the private sector is already trying to do for a profit. Any such proposal raises screams of "SOCIALISM!" which basically kills anything. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com

Re: [mailop] Debt Collection Client Email Servers

2024-03-25 Thread Bill Cole via mailop
o a mix of some people who arguably deserve it and some whom you can only hope will be sympathetic and not report it as spam. Hopefully some day the dysfunction will provide enough negative feedback to make what you are doing illegal instead of unavoidable. -- Bill Cole b...@scconsult.co

Re: [mailop] [spamhaus] de-listing requests successful, but only for a couple of days.

2024-03-16 Thread Bill Cole via mailop
s the profitable market for usable addresses. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

2024-03-13 Thread Bill Cole via mailop
STARTTLS on the same TCP connection. The plaintext fallback behavior that I'm aware of in MTAs' SMTP clients is by way of a fresh connection. Some have done so poorly at times and I'm not sure how good fallback is across the class. I don't think any MUA client knows how to f

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

2024-03-13 Thread Bill Cole via mailop
nfirm that essentially all of the legit mail I see using TLSv1.[01] bears indicators of JavaMail. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ m

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

2024-03-13 Thread Bill Cole via mailop
On 2024-03-13 at 10:56:53 UTC-0400 (Wed, 13 Mar 2024 15:56:53 +0100) Marco Moock via mailop is rumored to have said: Am 13.03.2024 um 10:43:27 Uhr schrieb Bill Cole via mailop: Without one, disabling them is a cargo-cult praxis that is worse than any false sense of security provided to

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

2024-03-13 Thread Bill Cole via mailop
rovided to oblivious peers who can't do TLSv1.2 or better. It is a disservice to end recipients for a pair of MTAs to fall back to plaintext when both ends could in principle negotiate a rock-solid ciphersuite with TLSv1.0 or TLSv1.1. -- Bill Cole b...@scconsult.com or billc...@apach

Re: [mailop] % in SRS ?

2024-03-08 Thread Bill Cole via mailop
at are NOT appropriate for SRS. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] freenet.de routing issues anyone? (Cloudflare-OVH issue?)

2024-03-08 Thread Bill Cole via mailop
mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop -- Stefano Bagnara Apache James/jDKIM/jSPF VOXmail/Mosaico.io/VoidLabs ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop -- Bill Co

Re: [mailop] Filter out emoji from email adresses

2024-03-07 Thread Bill Cole via mailop
lists, including this one. Right, but they do not use the SMTPUTF8/EAI mechanism (raw UTF8 characters) but instead use the long-established MIME mechanism for encoding non-ASCII header fields using Base64 or Quoted-Printable. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA

Re: [mailop] MTA-STS errors?

2024-03-06 Thread Bill Cole via mailop
On 2024-03-06 at 13:35:10 UTC-0500 (Wed, 6 Mar 2024 13:35:10 -0500) Michael W. Lucas via mailop is rumored to have said: On Wed, Mar 06, 2024 at 01:17:43PM -0500, Bill Cole via mailop wrote: Call me crazy, but if the policy changes on sub-day cadence, I don't think I want that email a

Re: [mailop] MTA-STS errors?

2024-03-06 Thread Bill Cole via mailop
olicy twice a day, it's not Policy. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Filter out emoji from email adresses

2024-03-06 Thread Bill Cole via mailop
gh-bit-set bytes in headers unless you have a narrowly limited audience of receivers. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing l

Re: [mailop] Anyone from Yahoo?

2024-03-06 Thread Bill Cole via mailop
e. My least favorite mail stream ever was school progress reports. Students are often motivated to report them as spam, which occasionally will convince a mail provider to filter them. And many providers who don't filter them will still send a steady stream of spam reports of them in thei

Re: [mailop] Any Apple guys, with knowledge of their networks shed some light on this IP Space?

2024-03-05 Thread Bill Cole via mailop
82-0300 Beautiful British Columbia, Canada ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Cur

Re: [mailop] PTR check mechanism / gmail

2024-03-04 Thread Bill Cole via mailop
uration is requiring that an IP have a PTR (equivalent to Postfix's "reject_unknown_reverse_client_hostname") and sometimes people figure out ways to require more (e.g. that the name resolve to something.) -- Bill Cole b...@scconsult.com or billc...@apache.org

Re: [mailop] Outgoing Spam from Microsoft IPs

2024-02-19 Thread Bill Cole via mailop
Not at all. If the big mailbox providers switch and break mail to them from non-compliant senders, everything else still functions normally. No need for any sort of "flag day." -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addr

Re: [mailop] Verifying receipients?

2024-02-16 Thread Bill Cole via mailop
work. The same goes for sender verification. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire ___ mailop mailing list mailop@mailop.org https://list.mailo

Re: [mailop] Why is mail forwarding such a mess?

2024-02-12 Thread Bill Cole via mailop
On 2024-02-12 at 14:23:39 UTC-0500 (Mon, 12 Feb 2024 20:23:39 +0100) Thomas Walter via mailop is rumored to have said: > Hey Bill, > > On 12.02.24 17:31, Bill Cole via mailop wrote: >> On 2024-02-12 at 07:13:13 UTC-0500 (Mon, 12 Feb 2024 13:13:13 +0100) >> Thomas Walter via

Re: [mailop] Why is mail forwarding such a mess?

2024-02-12 Thread Bill Cole via mailop
ks and improper diversion of mail with very little visibility. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire signature.asc Description: OpenPGP digital sig

Re: [mailop] problem setting up open-dmarc

2024-02-07 Thread Bill Cole via mailop
lly not yet today. > You need it right now if you want to protect your communication against > forgeries. Not so much. DKIM and SPF are adequate for most senders. Arguably, SPF would suffice for most sending domains if it were not for transparent forwarding. -- Bill Cole b...@scconsult.com

Re: [mailop] DMARC on srs forwarding domains?

2024-02-02 Thread Bill Cole via mailop
e for anyone other than the behemoths to support ARC in any meaningful way for the near term (0-5 years) and you will always (effectively... ) have sites rejecting on SPF failures out of misguided "principle." -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA @grum

Re: [mailop] [External] seeking a spamtrap milter

2024-01-23 Thread Bill Cole via mailop
ht thing." > (and sometimes in addition to the presence > of an MX record when any or all of the defined MXes rejects their > attempts with 4yz {temporary} or 5yz {permanent} SMTP error codes). Very much NOT the right thing. -- Bill Cole b...@scconsult.com or billc...@apache.org (AKA

Re: [mailop] [External] seeking a spamtrap milter

2024-01-23 Thread Bill Cole via mailop
receive email get email for your MTA so the milter "sees" the email. I don't believe that is true, since you can reject based on recipient addresses in the filter_recipient() subroutine, where you have both a current recipient and the client IP each time that it is called. -

Re: [mailop] Spamhaus contact?

2024-01-20 Thread Bill Cole via mailop
e even smaller EDROP) that one can expect NO friendly traffic from. NO ONE should see any collateral damage from using DROP. UCEPROTECT L3 is an intentional collateral damage list. If one COULD use it as a router blocking list, one would not perceive the Internet to be functional.

Re: [mailop] Anyone else noticing an increase in spam from Office365 distribution lists?

2024-01-19 Thread Bill Cole via mailop
orporations who have had policies of rejecting any meeting invites with .ics files unless the sender is whitelisted. Too many people do not expect random strangers "inviting" them to meetings and have their settings configured to auto-accept invites. -- Bill Cole b...@scconsult.c

Re: [mailop] Spamhaus contact?

2024-01-19 Thread Bill Cole via mailop
600, http://www.infinitemho.fi/ ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop -- Bill C

  1   2   3   4   5   >