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

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

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 - > > my understanding of section 2.3. "Body" of RFC 5322 "Internet Message Format" > (https://datatracker.ietf.org/doc/html/rfc5322#section-2.3) is that a sole

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

On 2025-01-09 at 22:01:08 UTC-0500 (Fri, 10 Jan 2025 04:01:08 +0100) Ángel via mailop is rumored to have said: I do think that enforcing Application Specific Passwords is a good solution to the problem, and requiring no client-side changes, Right. If you must store a password in a recoverable

Re: [mailop] Google Workspace subdomain spam

On 2025-01-03 at 06:27:52 UTC-0500 (Fri, 3 Jan 2025 12:27:52 +0100) Jaroslaw Rafa via mailop is rumored to have said: I know many companies and organizations that are using Google Groups for actual, routine email communication within the company/organization and/or its parts, like we are using

Re: [mailop] This is ridiculous

On 2024-12-27 at 10:28:06 UTC-0500 (27 Dec 2024 10:28:06 -0500) John Levine via mailop is rumored to have said: As I may have noted once or twice, often free services are worth what you pay for them. But often substantially less. Expecting deliverability from a freebie domain to any of the b

Re: [mailop] How much mail is spam?

On 2024-12-09 at 16:43:33 UTC-0500 (Mon, 9 Dec 2024 21:43:33 +) Mark Delany via mailop is rumored to have said: On 09Dec24, John Levine via mailop apparently wrote: It has been my impression that for many years about 90% of the mail a system typically Does anyone have research which desc

Re: [mailop] whois's netname

On 2024-11-21 at 17:37:24 UTC-0500 (Thu, 21 Nov 2024 23:37:24 +0100) Philipp Kern via mailop is rumored to have said: On 11/21/24 5:58 PM, Slavko via mailop wrote: On 21. novembra 2024 15:51:52 UTC, Marco Moock via mailop wrote: At least that works for me: m@ryz:~$ whois 129.206.0.0 |grep

Re: [mailop] whois's netname

On 2024-11-21 at 10:29:11 UTC-0500 (Thu, 21 Nov 2024 15:29:11 +) Slavko via mailop is rumored to have said: Hi all, when i go through various SpamHaus's outputs, i see that they reports networks by netname. I was able to get details by searching that netname in RIPE's whois web form, but

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

On 2024-11-20 at 14:10:42 UTC-0500 (Wed, 20 Nov 2024 14:10:42 -0500) Miles Fidelman via mailop is rumored to have said: Hi Folks, Not really sure where to ask this question, so I'll start here. I've been thinking of migrating our mail infrastructure to a virtual server, running in the Web3 I

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

On 2024-11-16 at 19:55:52 UTC-0500 (Sat, 16 Nov 2024 18:55:52 -0600) Michael Rathbun via mailop is rumored to have said: I confess to being completely mystified. What is the nature of these TLS reports, and where do they come from? Presumably RFC8460 https://datatracker.ietf.org/doc/html/rf

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

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

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: However, my perception rather is that e.g. the notion of a "postmaster address" is unknown to quite a few admins these days. Such admins should be concerned for their jobs

Re: [mailop] Google Rejecting Mails as Spam

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

On 2024-10-25 at 14:27:21 UTC-0400 (Fri, 25 Oct 2024 20:27:21 +0200) Matus UHLAR - fantomas via mailop is rumored to have said: > On 25.10.24 11:08, Pete Long via mailop wrote: >> DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; >> d=valar.uk.net; s=default; h=To:Date:Message-Id:S

Re: [mailop] Mimecast DKIM Sender Invalid

On 2024-10-21 at 12:32:34 UTC-0400 (Mon, 21 Oct 2024 18:32:34 +0200) Jaroslaw Rafa via mailop is rumored to have said: Dnia 21.10.2024 o godz. 17:04:33 Steve Atkins via mailop pisze: Chatting with Florian off list it seems likely that the Postfix smarthost is accepting Content-Transfer-Encodin

Re: [mailop] SPF fragility vs. utility

On 2024-10-18 at 13:57:57 UTC-0400 (Fri, 18 Oct 2024 19:57:57 +0200) Jaroslaw Rafa via mailop is rumored to have said: Dnia 18.10.2024 o godz. 13:51:10 Michael Orlitzky via mailop pisze: On Fri, 2024-10-18 at 19:33 +0200, Jaroslaw Rafa via mailop wrote: I don't understand why anybody is develo

Re: [mailop] SPF fragility vs. utility

On 2024-10-18 at 13:33:41 UTC-0400 (Fri, 18 Oct 2024 19:33:41 +0200) Jaroslaw Rafa via mailop is rumored to have said: [...] Does anybody have any reasonable explanation for that? Some 3rd-rate maintenance engineer at MS assigned to Outlook needed to have a deliverable for his quarterly rem

Re: [mailop] SPF fragility vs. utility

On 2024-10-18 at 10:24:05 UTC-0400 (Fri, 18 Oct 2024 14:24:05 +) Slavko via mailop is rumored to have said: [...] BTW, this ML is exact example how bad it is, as i setup to show email, but here i lost to see, who was sender, and if someone do not add signature... ;-) The real original sen

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

On 2024-10-11 at 01:59:04 UTC-0400 (Fri, 11 Oct 2024 01:59:04 -0400) Scott Q. via mailop is rumored to have said: Hi John, if you don't mind me asking, when you say: which makes it easy for any of their customers to SPF spoof any other customer. you mean the header or the envelope from ? A

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

On 2024-09-20 at 13:54:06 UTC-0400 (Fri, 20 Sep 2024 17:54:06 +) Slavko via mailop is rumored to have said: Dňa 20. septembra 2024 17:17:34 UTC používateľ Michael Wise via mailop napísal: X-Forefront-Antispam-Report: ...;SFV:SPM;... We have a policy on a per message basis o

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

On 2024-09-20 at 13:17:34 UTC-0400 (Fri, 20 Sep 2024 17:17:34 +) Michael Wise via mailop is rumored to have said: As always, there can be both FNs and FPs, so be advised. For most sites, the FPs encountered when deeming all mail from *@*.onmicrosoft.com addresses that Microsoft has tagge

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

On 2024-08-27 at 15:35:41 UTC-0400 (Tue, 27 Aug 2024 22:35:41 +0300) Atro Tossavainen via mailop is rumored to have said: >> There's life at Google. Just pay for GSuite. > > Is this the generic advice that all Android device users should take > in order to ensure they will be able to continue to

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

On 2024-08-27 at 11:11:12 UTC-0400 (Tue, 27 Aug 2024 08:11:12 -0700) Aaron C. de Bruyn via mailop is rumored to have said: I'll pull the pin on this grenade and take the flack, but if you aren't paying, why would you expect support? And if you don't expect support, why would you do *anything*

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

On 2024-08-22 at 17:53:07 UTC-0400 (Fri, 23 Aug 2024 05:53:07 +0800) horizon--- via mailop is rumored to have said: If the other party provides evidence, such as our users suspected of participating in terrorist attacks, is it necessary to directly provide relevant information out of humanitar

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

On 2024-08-22 at 16:12:26 UTC-0400 (Fri, 23 Aug 2024 04:12:26 +0800) horizon--- via mailop is rumored to have said: As a postmaster, I often receive assistance investigation emails from official organizations in certain countries (which I have not confirmed) such as intelligence agencies and c

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

On 2024-08-01 at 16:26:46 UTC-0400 (Thu, 1 Aug 2024 15:26:46 -0500) Mike McTee via mailop is rumored to have said: Their server bounces his messages with this error: 550 5.7.1 Connections not accepted from servers without a valid sender domain.flph840 Fix reverse DNS for 66.171.0.45 But I sen

Re: [mailop] Echospoofing

On 2024-07-31 at 03:41:49 UTC-0400 (Wed, 31 Jul 2024 08:41:49 +0100 (BST)) Andrew C Aitchison via mailop is rumored to have said: On Wed, 30 Jul 2024, John Levine via mailop wrote: It appears that Jaren Angerbauer via mailop said: $dayjob is Proofpoint -- I have been heavily involved with t

Re: [mailop] safe-mail.net

On 2024-07-11 at 23:35:05 UTC-0400 (Fri, 12 Jul 2024 03:35:05 +) Mark Delany via mailop is rumored to have said: Nearly 1/2 a century later, it's still the case that most mail clients will look for address RRs in the absence of an MX. Because failing to do so would be ignoring a requirem

Re: [mailop] getting unblocked at outlook?

On 2024-07-11 at 15:52:53 UTC-0400 (Thu, 11 Jul 2024 15:52:53 -0400) Michael W. Lucas via mailop is rumored to have said: Just started getting these today. Looks like one of my colo neighbors behaved badly. No useful info at the suggested link, no contact given. Any suggestions on how to get my

Re: [mailop] Domains discrimination

On 2024-07-10 at 14:44:50 UTC-0400 (Thu, 11 Jul 2024 02:44:50 +0800) Jeff Pang via mailop is rumored to have said: Hi Is there domain name discrimination in the email industry? Absolutely. Domain names carry reputations. They make it easier to discriminate between spam and ham. "Discriminat

Re: [mailop] Domains discrimination

On 2024-07-10 at 15:10:45 UTC-0400 (Thu, 11 Jul 2024 03:10:45 +0800) Jeff Pang via mailop is rumored to have said: On 2024-07-11 02:58, Michael Rathbun via mailop wrote: On Thu, 11 Jul 2024 02:44:50 +0800, Jeff Pang via mailop wrote: Is there domain name discrimination in the email industry

Re: [mailop] Domains discrimination

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.com or billc...@apache.or

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

On 2024-07-10 at 18:12:20 UTC-0400 (Thu, 11 Jul 2024 06:12:20 +0800) Jeff Pang via mailop is rumored to have said: This is what claude-3.5-sonnet answered for att email domains. It is a grossly unwise choice to look to ANY LLM for factual answers and it is actively misleading to present what

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

On 2024-07-09 at 13:53:47 UTC-0400 (Tue, 9 Jul 2024 11:53:47 -0600) Anne P. Mitchell, Esq. via mailop is rumored to have said: Receivers don't block email from new IPs by default; they block them when they notice something amiss with the email (be it improper authentication, spam complaints, o

Re: [mailop] too many bad IP blocked

On 2024-06-21 at 02:56:44 UTC-0400 (Fri, 21 Jun 2024 08:56:44 +0200) Dominique Rousseau via mailop is rumored to have said: Also, if the same IPs are comming back often, you could look the "recidive" rules, for long term ban, and/or (semi)manually check wether IPs are from somme common netblo

Re: [mailop] too many bad IP blocked

On 2024-06-20 at 20:10:32 UTC-0400 (Fri, 21 Jun 2024 08:10:32 +0800) Jeff Pang via mailop is rumored to have said: And in an hour it gets double IPs blocked. $ sudo iptables -L -n|grep DROP|wc -l 2805 any idea? About what? Unless you are seriously memory or cpu-constrained, 2805 simple drop

Re: [mailop] Anyone from Prodigy

On 2024-05-29 at 02:13:50 UTC-0400 (Wed, 29 May 2024 06:13:50 +) Mark Dale via mailop is rumored to have said: Is there anyone from Prodigy on the list? We're seeing mail blocked that is addressed to @sbcglobal.net, @att.net And no response from postmaster[AT]prodigy nor abuse_rbl[AT]a

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

On 2024-05-18 at 17:12:11 UTC-0400 (Sat, 18 May 2024 21:12:11 +) Gellner, Oliver via mailop is rumored to have said: On 18.05.2024 at 21:02 Dave Crocker via mailop wrote: [...] Seems like the right approach is to seek community-wide pressure to deprecate it. First through operational pre

Re: [mailop] Does iCloud accept forwards?

On 2024-05-16 at 23:40:57 UTC-0400 (Thu, 16 May 2024 20:40:57 -0700) Mark Fletcher via mailop is rumored to have said: Does the above mean that the message we sent was forwarded on from siark.com to an iCloud address? Yes. That's a SRS address. Invented and deployed to preserve viability of

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

On 2024-05-17 at 14:38:00 UTC-0400 (Fri, 17 May 2024 18:38:00 +) Gellner, Oliver via mailop is rumored to have said: While it’s not new information that the length attribute of DKIM poses a security risk, it’s still worthwhile to draw attention to it every once in a while and the usual sus

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

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

I can't say that Spamhaus lists IPs that engage in the abusive practice of remote sender verification but I would be happy to hear that they are doing so and CSS+XBL listing is a reasonable expression of that sort of world-hostile behavior. (I saw your Exim-Users discussion) On 2024-04-18 at

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

On 2024-04-18 at 07:18:46 UTC-0400 (Thu, 18 Apr 2024 13:18:46 +0200) Matus UHLAR - fantomas via mailop is rumored to have said: If you have more than one IP for your network, I recommend use separate IP to translate connections from/to your mailserver. +1 +1000 Don't make your mail server in

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

On 2024-03-31 at 10:21:40 UTC-0400 (Sun, 31 Mar 2024 17:21:40 +0300) Odhiambo Washington via mailop is rumored to have said: I have just had several email bounces from a mailing list that I have been running since 2005. I have contacted Google using this form

Re: [mailop] Debt Collection Client Email Servers

On 2024-03-25 at 12:53:31 UTC-0400 (Mon, 25 Mar 2024 17:53:31 +0100) Jaroslaw Rafa via mailop is rumored to have said: Does USA have a government-certfied platform for electronic delivery of documents Not for general use. The IRS is piloting a direct tax filing system for a small number of

Re: [mailop] Debt Collection Client Email Servers

On 2024-03-25 at 11:47:11 UTC-0400 (Mon, 25 Mar 2024 15:47:11 +) Michael Irvine via mailop is rumored to have said: how can we guarantee it to the inbox if many of the users mark it as SPAM and potentially blocks other communication. You cannot. The fact that you have an email address is

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

On 2024-03-14 at 20:26:00 UTC-0400 (Thu, 14 Mar 2024 17:26:00 -0700) Jay Hennigan via mailop is rumored to have said: On 3/14/24 15:18, Michael Grimm via mailop wrote: OVH is sharing a /64 subnet among multiple customers since they started their public cloud project. You are only provided wit

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

On 2024-03-13 at 14:30:40 UTC-0400 (Wed, 13 Mar 2024 20:30:40 +0200 (EET)) Harald Hannelius via mailop is rumored to have said: Are there SMTP-"clients" that actually are able to back down from STARTTLS and continue unencrypted? I'm not aware of anyway to de-escalate after a STARTTLS on the

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

On 2024-03-13 at 14:22:55 UTC-0400 (Wed, 13 Mar 2024 13:22:55 -0500) Robert Giles via mailop is rumored to have said: Sort of surprising, but I don't think JPMorgan Chase (large U.S. bank) is able to do TLS 1.2+ from their outbound JavaMail infrastructure in 159.53.111.0/24: I can confirm th

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

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

On 2024-03-13 at 07:28:18 UTC-0400 (Wed, 13 Mar 2024 11:28:18 + (UTC)) L. Mark Stone via mailop is rumored to have said: > FWIW, our view is that poor encryption can be worse than no encryption, as it > can give the participants a false sense of security. This seems like a good > move to u

Re: [mailop] % in SRS ?

On 2024-03-08 at 12:07:23 UTC-0500 (Fri, 08 Mar 2024 17:07:23 +) Julian Bradfield via mailop is rumored to have said: Is there any reason not to use the old routing character '%' instead? Yes: it is an old routing character As such, some sites may misinterpret it in ways that are NOT app

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

On 2024-03-08 at 09:13:32 UTC-0500 (Fri, 8 Mar 2024 15:13:32 +0100) Stefano Bagnara via mailop is rumored to have said: Well, I undestand you all hate OVH, but this really doesn't look like an intended block. Sure it does. I tested that when I log to my @freenet.de email I am not able to w

Re: [mailop] Filter out emoji from email adresses

On 2024-03-06 at 18:51:10 UTC-0500 (Wed, 6 Mar 2024 23:51:10 + (GMT)) Andrew C Aitchison via mailop is rumored to have said: On Wed, 6 Mar 2024, John Levine via mailop wrote: Right. I am aware of communities of EAI mail users in India and Thailand, but not anywhere else. You might expe

Re: [mailop] MTA-STS errors?

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?

On 2024-03-06 at 12:44:18 UTC-0500 (Wed, 6 Mar 2024 12:44:18 -0500) Michael W. Lucas via mailop is rumored to have said: On Wed, Mar 06, 2024 at 05:46:06PM +0100, Bernardo Reino via mailop wrote: On Wed, 6 Mar 2024, Michael W. Lucas via mailop wrote: ... Apparently "Google will only process

Re: [mailop] Filter out emoji from email adresses

On 2024-03-06 at 12:30:30 UTC-0500 (Wed, 06 Mar 2024 17:30:30 +) Slavko via mailop is rumored to have said: Dňa 6. marca 2024 15:52:47 UTC používateľ John Levine via mailop napísal: There's an extension called SMTPUTF8, informally known as EAI for Email Address Internationalization, tha

Re: [mailop] Anyone from Yahoo?

On 2024-03-05 at 18:12:05 UTC-0500 (Tue, 5 Mar 2024 19:12:05 -0400) Thomas Johnson via mailop is rumored to have said: Hello everyone- We had an incident where a trusted connection from Microsoft had a nice large dump of spam - it appears that several of their customers were compromised. "

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

On 2024-03-04 at 18:00:24 UTC-0500 (Mon, 4 Mar 2024 15:00:24 -0800) Michael Peddemors via mailop is rumored to have said: Does anyone know what this IP space is assigned for in general? Tracking some new threats.. inetnum:144.178.0.0 - 144.178.63.255 descr: Apple Inc status:

Re: [mailop] PTR check mechanism / gmail

On 2024-03-03 at 14:36:25 UTC-0500 (Sun, 3 Mar 2024 20:36:25 +0100) Marco Moock via mailop is rumored to have said: Most server require that the PTR points to a domain name like mail.example.org and that has the corresponding A/ records that point to the IP address. "Most" is probably an

Re: [mailop] Outgoing Spam from Microsoft IPs

On 2024-02-19 at 08:26:18 UTC-0500 (Mon, 19 Feb 2024 13:26:18 +) Slavko via mailop is rumored to have said: Dňa 19. februára 2024 12:46:51 UTC používateľ "Gellner, Oliver via mailop" napísal: ...the big email services providers need to make the first step in a coordinated procedure. Oth

Re: [mailop] Verifying receipients?

On 2024-02-16 at 15:49:12 UTC-0500 (Fri, 16 Feb 2024 14:49:12 -0600) Jesse Hathaway via mailop is rumored to have said: What is this current attitude on using something like Postfix's `reject_unverified_recipient`? ONLY use this when you are relaying for specific domains that you service whe

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

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?

On 2024-02-12 at 07:13:13 UTC-0500 (Mon, 12 Feb 2024 13:13:13 +0100) Thomas Walter via mailop is rumored to have said: > There are other issues with this though. For example you are exposing > information you might not want to. Beyond that, it would enable both malicious reflection attacks and

Re: [mailop] problem setting up open-dmarc

On 2024-02-07 at 05:40:50 UTC-0500 (Wed, 7 Feb 2024 12:40:50 +0200) Taavi Eomäe via mailop is rumored to have said: [Snip. Quoting Michael P.] >> Unless you are a big budget email sender, don't stress to much.  Maybe >> tomorrow we will need something like DMARC, but thankfully not yet today. >

Re: [mailop] DMARC on srs forwarding domains?

On 2024-02-02 at 10:26:55 UTC-0500 (Fri, 2 Feb 2024 16:26:55 +0100) Kai Bojens via mailop is rumored to have said: Am 02.02.24 um 16:08 schrieb Mark E. Jeftovic via mailop: We're having a bit of a theological debate internally on whether to implement DMARC on our SRS forwarder domains. Skip

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

On 2024-01-23 at 15:35:45 UTC-0500 (Tue, 23 Jan 2024 12:35:45 -0800) Randolf Richardson, Postmaster via mailop is rumored to have said: > spamware seems to fall back to the "A" and "" records in the > absence of an MX records Also known as "doing the right thing." > (and sometimes in additi

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

On 2024-01-23 at 15:00:01 UTC-0500 (Tue, 23 Jan 2024 15:00:01 -0500) Kevin A. McGrail via mailop is rumored to have said: Hi folks, I suspect this exists, but can't come up with the right search. I have domains that should never receive mail. I'd like a milter that looks for mail to those dom

Re: [mailop] Spamhaus contact?

On 2024-01-19 at 15:42:49 UTC-0500 (Fri, 19 Jan 2024 12:42:49 -0800) Randolf Richardson, Postmaster via mailop is rumored to have said: Spamhaus makes the DROP data available (which I believe is also included in their SBL), which is useful for using firewalls to just block or ignore c

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

On 2024-01-19 at 07:03:35 UTC-0500 (Fri, 19 Jan 2024 12:03:35 +) Simon Arlott via mailop is rumored to have said: On 19/01/2024 00:33, Randolf Richardson, Postmaster via mailop wrote: The blacklists seem to be blocking mostly the ones that send directly from @.onmicrosoft.com addre

Re: [mailop] Spamhaus contact?

On 2024-01-19 at 09:31:19 UTC-0500 (Fri, 19 Jan 2024 15:31:19 +0100) hg user via mailop is rumored to have said: Ok sorry not "most" but "some may"... My checkpoint rep said that they get their reputation lists from other companies... is it wrong ? In all likelihood that means they don't man

Re: [mailop] Spamhaus contact?

On 2024-01-19 at 05:31:12 UTC-0500 (Fri, 19 Jan 2024 10:31:12 +) Graeme Fowler via mailop is rumored to have said: On 19 January 2024 06:13:20 hg user via mailop wrote: Since most RBLs exchange data Small pedantic point: DNSBLs, not RBLs. As an erstwhile MAPS employee, the persistence

Re: [mailop] o365 outbound senders.. Strange Failures sending .. widespread reports

On 2023-12-19 at 01:12:56 UTC-0500 (Tue, 19 Dec 2023 07:12:56 +0100) Benny Pedersen via mailop is rumored to have said: EHLO after STARTTLS, clearly bots only Nope. Vide: Dec 19 08:31:47 shiny postfix/smtpd[94038]: disconnect from mxout1-he-de.apache.org[95.216.194.37] ehlo=2 starttls=1 mai

Re: [mailop] ECDSA DKIM validation?

On 2023-12-18 at 15:03:16 UTC-0500 (Mon, 18 Dec 2023 15:03:16 -0500) Michael W. Lucas via mailop is rumored to have said: > Hi, > > Last I checked a few years ago, validation of ECDSA DKIM keys was > still iffy on deployed servers. Has the situation improved? Can we > recommend ECDSA DKIM yet wit

Re: [mailop] Merry Christmas from Google?

On 2023-12-17 at 04:45:04 UTC-0500 (Sun, 17 Dec 2023 10:45:04 +0100) Benny Pedersen via mailop is rumored to have said: false, every forwarder changes envelope sender, No matter how many times you say this, it remains a dangerously misleading lie. If, on a Unix-like system running Postfix

Re: [mailop] Hotmail complains about their own mail

On 2023-12-16 at 11:31:18 UTC-0500 (Sat, 16 Dec 2023 17:31:18 +0100) Thomas Walter via mailop is rumored to have said: > On 16.12.23 12:11, ml+mailop--- via mailop wrote: >> On Sat, Dec 16, 2023, Thomas Walter via mailop wrote: >> >>> 2. Our server bounces with 550 5.1.1 User doesn't exist. >> >>

Re: [mailop] Another very strange microsoft originated email??

On 2023-12-07 at 16:20:23 UTC-0500 (Thu, 7 Dec 2023 13:20:23 -0800) Michael Peddemors via mailop is rumored to have said: For the record, the command line 'whois' tool is getting long in the tooth, and the maintainer isnt' really interested in updating the tools, database.. (We offered to help

Re: [mailop] Convincing clients of the importance of eMail recipient consent for mailing list subscriptions

On 2023-11-28 at 08:39:13 UTC-0500 (Tue, 28 Nov 2023 13:39:13 +) Laura Atkins via mailop is rumored to have said: Hell, even if you are dishonest and make the costs of deliverability problems higher than they are it can still be challenging to make COI look more profitable. I really wish

Re: [mailop] Convincing clients of the importance of eMail recipient consent for mailing list subscriptions

On 2023-11-27 at 13:42:58 UTC-0500 (Mon, 27 Nov 2023 10:42:58 -0800) Randolf Richardson, Postmaster via mailop is rumored to have said: What have you found to be some of the best approaches to convince clients that the confirmed opt-in process is necessary for operating eMail lists? (T

Re: [mailop] Historical spam loads - was Re: Google rate-limiting more aggressively than usual?

On 2023-11-19 at 14:02:04 UTC-0500 (Sun, 19 Nov 2023 19:02:04 + (GMT)) Andrew C Aitchison via mailop is rumored to have said: On Sun, 19 Nov 2023, Bill Cole via mailop wrote: On 2023-11-19 at 06:59:37 UTC-0500 (Sun, 19 Nov 2023 12:59:37 +0100) Alessandro Vesely via mailop is rumored to

Re: [mailop] Google rate-limiting more aggressively than usual?

On 2023-11-19 at 06:59:37 UTC-0500 (Sun, 19 Nov 2023 12:59:37 +0100) Alessandro Vesely via mailop is rumored to have said: I don't think someone can drop almost all mail and still call itself a mail server. Were you running a mail system in the early-mid 2000s? At that time, I tracked the pe

Re: [mailop] If one signature is good, 72 signatures must be better

On 2023-11-16 at 06:49:03 UTC-0500 (16 Nov 2023 06:49:03 -0500) John Levine via mailop is rumored to have said: It appears that Gellner, Oliver via mailop said: On 16.11.2023 at 03:05 John Levine via mailop wrote: I just got a couple of quite remarkable messages from Sabre's Tripcase servic

Re: [mailop] How to handle hostname and PTR mismatch?

On 2023-10-27 at 09:19:33 UTC-0400 (Fri, 27 Oct 2023 15:19:33 +0200) Cyril - ImprovMX via mailop is rumored to have said: Hi! It's been quite common to refuse a server connecting that doesn't have a proper PTR, but I was wondering if there was any recommendation (either official via RFC or s

Re: [mailop] fastmail and sender score snafu

On 2023-10-09 at 03:46:08 UTC-0400 (Mon, 9 Oct 2023 07:46:08 +) Gellner, Oliver via mailop is rumored to have said: Postfix default of the maximum queue lifetime is 5 days: https://www.postfix.org/postconf.5.html#maximal_queue_lifetime One month is very long, but I usually see systems to re

Re: [mailop] Zero-day RCE for exim - whacky stats?

On 2023-09-30 at 03:36:02 UTC-0400 (Sat, 30 Sep 2023 08:36:02 +0100 (BST)) Andrew C Aitchison via mailop is rumored to have said: On Sat, 30 Sep 2023, Jay R. Ashworth via mailop wrote: I haven't even heard exim *mentioned* in like 20 years; these stats can't be right, can they? https://www

Re: [mailop] Gmail says "Message bounced due to organizational settings."

On 2023-09-26 at 20:57:10 UTC-0400 (26 Sep 2023 20:57:10 -0400) John Levine via mailop is rumored to have said: "Message bounced due to organizational settings." It should only be possible to get that from GMail if the sender is part of a GApps organization that has organization-wide rules s

Re: [mailop] Amazon SES using SAME sender Domain for multiple customer?

On 2023-09-25 at 08:49:51 UTC-0400 (Mon, 25 Sep 2023 12:49:51 +) Mike Hillyer via mailop is rumored to have said: They do encourage users to send from their own domain, but they do not require it before using Amazon SES. It might be tactically useful for people who can take the FP hit to

Re: [mailop] Authentication Bounces by Gmail

On 2023-09-19 at 17:52:33 UTC-0400 (Tue, 19 Sep 2023 14:52:33 -0700) Bill Sommerfeld via mailop is rumored to have said: A similar form of damage I just noticed today was an outsourced-to-Microsoft mail service breaking a forwarded message's DKIM signature when it rewrote: From: Reply-To:

Re: [mailop] Authentication Bounces by Gmail

On 2023-09-19 at 11:46:28 UTC-0400 (Tue, 19 Sep 2023 17:46:28 +0200) Alessandro Vesely via mailop is rumored to have said: Comparing the bounced message with the original, it turned out the angle brackets were removed from the From: address, which is legal since there was no display-name, but

Re: [mailop] Google - Messages with multiple addresses in From: header are not accepted.

On 2023-09-18 at 10:53:16 UTC-0400 (Mon, 18 Sep 2023 09:53:16 -0500) Scott Mutter via mailop is rumored to have said: I'm not sure if a leading space in a message header is proper. Nope. Any leading whitespace in a header line indicates that it is logically part of the prior header. You're

Re: [mailop] Increase of SSL/TLS errors

ficate. Read the error message. Best regards, Camille Le 12/09/2023 à 00:26, Bill Cole via mailop a écrit : On 2023-09-11 at 17:05:00 UTC-0400 (Mon, 11 Sep 2023 23:05:00 +0200) Camille - Clean Mailbox via mailop is rumored to have said: Dear co-listers, I'm seeing an increase of SSL/TLS er

Re: [mailop] Increase of SSL/TLS errors

On 2023-09-11 at 17:05:00 UTC-0400 (Mon, 11 Sep 2023 23:05:00 +0200) Camille - Clean Mailbox via mailop is rumored to have said: Dear co-listers, I'm seeing an increase of SSL/TLS errors for incoming emails to our service over the last few weeks. Example from Mailjet, which is (I suppose) a

Re: [mailop] New Validity policy for paid FBL (ARF)

On 2023-09-11 at 07:24:55 UTC-0400 (Mon, 11 Sep 2023 13:24:55 +0200) Support 3Hound via mailop is rumored to have said: Dear list, I would like to understand what the community think about the new Validity universal feedback loop service that is switching to a paid service starting 21 Septemb

Re: [mailop] hotmail.com SPF forgot IPv6

On 2023-08-21 at 16:33:07 UTC-0400 (21 Aug 2023 16:33:07 -0400) John Levine via mailop is rumored to have said: It appears that Gellner, Oliver via mailop said: On 19.08.2023 at 19:01 Jarland Donnell via mailop wrote: Is "-all" not indeed a policy in SPF, directed by the domain owner? I

Re: [mailop] AOL/Yahoo requiring SOA record for MAIL FROM domain name?

On 2023-07-13 at 12:06:45 UTC-0400 (Thu, 13 Jul 2023 11:06:45 -0500) Grant Taylor via mailop is rumored to have said: On 7/13/23 10:49 AM, Bill Cole via mailop wrote: It's not at all logically hard to meet that arbitrary requirement, you just need a zone cut everywhere you have a MX r

Re: [mailop] [E] Re: AOL/Yahoo requiring SOA record for MAIL FROM domain name?

On 2023-07-13 at 10:15:27 UTC-0400 (Thu, 13 Jul 2023 07:15:27 -0700) Marcel Becker via mailop is rumored to have said: No. I might as well reveal the actual domain names involved, since it's not particularly secret: it's "westfir.or.us" and "ci.westfir.or.us". It's actually not that compl

Re: [mailop] AOL/Yahoo requiring SOA record for MAIL FROM domain name?

On 2023-07-12 at 18:38:05 UTC-0400 (Wed, 12 Jul 2023 15:38:05 -0700) Robert L Mathews via mailop is rumored to have said: Today I had a customer complain that mail they send to AOL or Yahoo addresses was being returned with: 451 Message temporarily deferred due to unresolvable RFC.5321 from

Re: [mailop] Guide for setting up a mail server ?

On 2023-07-12 at 18:53:31 UTC-0400 (Wed, 12 Jul 2023 15:53:31 -0700) Michael Peddemors via mailop is rumored to have said: On 2023-07-12 12:53, Jaroslaw Rafa via mailop wrote: Most of regular consumer email users don't have any reason for this. As Bill Cole, whom I was replying to, wrote - nob

Re: [mailop] Guide for setting up a mail server ?

On 2023-07-12 at 05:46:47 UTC-0400 (Wed, 12 Jul 2023 11:46:47 +0200) Jaroslaw Rafa via mailop is rumored to have said: Exactly, because from my experience SPF, DKIM and DMARC bring very little (if anything at all) to security. I TRUTH. For the overwhelming majority of sending systems, the o

Re: [mailop] Guide for setting up a mail server ?

On 2023-07-11 at 20:58:19 UTC-0400 (11 Jul 2023 20:58:19 -0400) John Levine via mailop is rumored to have said: It appears that Grant Taylor via mailop said: On 7/11/23 2:48 PM, John Levine via mailop wrote: If your From: domain has neither an A nor an MX, I don't think you're going to get m

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