routing issue? Can you ping those hosts from
your mailserver?
FYI, they seem to all be hosted by OVH.
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arding proper mailing practice
despite the convincing evidence above that the bulk team is completely
clueless?
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ferentiate from their generic naming conventions will help you.
Or avoid Sendgrid entirely.
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On 3/14/24 13:21, Slavko via mailop wrote:
As the /64 is twice of whole IPv4 mask, plenty "spammers" with
minimal effort, just two/three kernel setting values...
A /64 is actually 4,294,967,296 times the whole IPv4 space, but who's
counting?
--
Jay Hennigan - j...@w
ne
/64 per customer subnet.
See here:
https://www.spamhaus.org/faqs/exploits-blocklist-xbl/#how-does-xbl-handle-ipv6-addresses
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
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mai
ing a /64 among multiple customers or OP has another machine that
is spamming from within the same subnet.
Sharing a /64 among multiple customers doesn't make sense. It's not like
OVH is in danger of running out of IPv6 space any time soon.
--
Jay Hennigan - j...@west.net
Network Enginee
mails should authenticate correctly. IP range is 78.143.254.0/24.
Seen the same thing from a low-volume Mailman discussion list. Cox.com
addresses all bounced with that code.
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - W
did so in
error.
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On 2/23/24 15:12, Mark Fletcher wrote:
On Fri, Feb 23, 2024 at 3:09 PM Jay Hennigan via mailop
mailto:mailop@mailop.org>> wrote:
There are many systems that scan links in email and falsely
unsubscribe.
I'd make it two-click. When clicked, have it go to a page that say
[Yes] [No]
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d opt-in or otherwise verify the email
addresses of its patrons? Maybe the patrons are putting in bogus
addresses. When asked for an email address by someone that I never want
to hear from, I've been known to enter "nob...@example.com". This
shouldn't wind up as a spamtrap, howe
without opening it, this gives feedback that the decision to route it to
spam was correct.
None of this feedback gets back to the spammer-sender.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
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big email providers.
Airline and hotel IPs probably should be characterized similarly to
dynamic or residential IPs. It's unlikely that legitimate mail will
originate there as SMTP. Users of these facilities typically use port
587 to relay mail through an authenticated smarthost.
-
back that involved some
sort of haiku in the header?
IMNSHO, expecting spammers to abide by legal prohibitions and
intellectual property laws is a non-starter. Attempting to legally
prevent MUA developers from displaying logos competing with BIMI's
approved logos, likewise.
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Jay He
On 11/16/23 02:54, Laura Atkins via mailop wrote:
The New York Times
Laura
Can you be more specific? Link to an article?
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ugins, or if you know they're going to use it to spam
you, abuse@ their domain. nob...@example.com works as well, and
1-900-976-1212 for a "required" phone number.
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
5
f DoorDash and Delta capture transactional email addresses and use
them to spam you back to the stone age (otherwise known as, "Present you
with offers of other products and services that may be of interest to
you"), then that's a different story.
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Jay Hennigan - j...@west.net
N
past your knees?
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IP is enough for UCEPROTECT to block whole /22 network.
Over what length of time did these 32 incidents occur? Is that IP still
spamming? Have you taken action to stop the abuse?
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
very careful in that regard as well.
It makes no difference if you're planning on emailing corporate or
personal addresses. Spam is spam whether it arrives at the office or at
your home.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-855
On 4/3/23 11:44, Mark Alley via mailop wrote:
Looks like a typoed domain.
Indeed, my bad. Disregard.
Never mind.
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...@asalesforce.com
Action: failed
Status: 5.1.1
Remote-MTA: dns; smtp.secureserver.net
Diagnostic-Code: smtp; 550 5.1.1 Recipient not
found.
<http://x.co/irbounce>
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
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.
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)
- Transcript of session follows -
... while talking to aspmx.l.google.com.:
With the amount of spam coming from Sendgrid, do you think they even
look at the ones that get through?
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
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.
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tzner
customer Y is a spammer, then maybe at least a temporary block on
destination port 25 outbound for customer Y would be a good idea while
things are sorted out.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - W
als, clubs, churches,
etc. to corporations. Kind of like a hosted well-locked-down GNU Mailman
with a lot of other collaboration features.
I suppose a few confirmation requests could get typo'd to a spamtrap
occasionally, but they're not spammy at all.
--
Jay Hennigan - j...@west.net
Ne
s was not obvious.
Either my efforts to unsubscribe were successful or they got the message
from others that what they were doing was a bad idea as it seems to have
reverted to local items only.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - W
where you purposely subscribe by yourself, and
spam mass-mailing, where you are subscribed without your knowledge or
consent, are two quite different things.
Fixed that for you.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-855
On 11/21/22 17:30, Jim Popovitch via mailop wrote:
On Mon, 2022-11-21 at 17:10 -0800, Jay Hennigan via mailop wrote:
On 11/21/22 16:24, Jim Popovitch via mailop wrote:
I still think there's some weirdness going on. Firstly I'd be surprised
if Wietse hung www off of 1 NS, and the
On 11/21/22 16:24, Jim Popovitch via mailop wrote:
I still think there's some weirdness going on. Firstly I'd be surprised
if Wietse hung www off of 1 NS, and then the base domain off of 2 NSes
on the same subnet.
Unless they're anycast. As a mild example, 4.2.2.1 and
On 9/20/22 13:59, Brandon Long via mailop wrote:
On Tue, Sep 20, 2022 at 1:42 PM Jay Hennigan via mailop
mailto:mailop@mailop.org>> wrote:
Is there an option to disable that behavior?
https://support.google.com/mail/answer/10079371
<https://support.google.com/mail/answer
477321/
<https://variety.com/2017/digital/news/google-gmail-ads-emails-1202477321/>
Is gmail really still alone in that now? Automatically populating your
calendar with airline reservations and the like?
Is there an option to disable that behavior?
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Jay Hennigan - j...@west.net
Network Enginee
ase with a rejection.
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fact spam sources. And when the spam problem is fixed, they
should delist them.
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, and this behavior serves to
drive people to the oligopoly.
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laints are way down,
therefore spam must be way down. Hint: it isn't.
There should be enough AI expertise within the organization to come up
with a scheme to parse reports to abuse@ . The fact that a business
decision was made to make spam reporting very difficult speaks volumes.
--
J
to
report spam from gmail, you need to go to a website and fill in a number
of boxes individually.
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f you eg. fill in a tax form (on paper) for your friend or
family member - because he/she asked you to help with this - and provide
correctly all his/her data, is this any problem? People do this all the
time.
Indeed they do, and not always with good intentions.
--
Jay Hennigan - j..
ad no previous
interaction and intends to mail that list in bulk. There is a word
describing such people. That word is "spammer".
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On 9/5/22 12:12, Bill Cole via mailop wrote:
On 2022-09-05 at 14:42:38 UTC-0400 (Mon, 5 Sep 2022 11:42:38 -0700)
Jay Hennigan via mailop
is rumored to have said:
On 9/5/22 07:48, Radek Kaczynski via mailop wrote:
We assume that:
- our customer (data controller) who requested us to verify
On 9/5/22 07:48, Radek Kaczynski via mailop wrote:
We assume that:
- our customer (data controller) who requested us to verify the email
address got it in a legal way
- our customer is obeying anti-spam policies.
What logical basis or evidence do you have to support this assumption?
--
Jay
RESPECTFUL cold email is complicated and thus rare to see.
Kind of like advocating that if you only pick up turds by the clean end
you don't need to wash your hands.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - W
On 5/17/22 16:40, Anne Mitchell via mailop wrote:
For those who didn't know, you may find this infuria...interesting. Did you know that CAN-SPAM mandated that the FTC look at creating a Do Not Email list and report their findings within 6 months of CAN-SPAM being enacted?
Of course, because la
The site could be as simple as the logical opposite of
http://iscaliforniaonfire.com/
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On 3/28/22 15:30, Graeme Slogrove via mailop wrote:
For assistance forward this error to
abuse_...@abuse-att.net <mailto:abuse_...@abuse-att.net>
Did you do that?
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
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won't see a bounce at all. The mail will just
sit in the user's mailbox.
I doubt if you'll see the typical 4xx or 5xx bounce from the receiving
system.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
__
he mail was sent, possibly redirecting to a
page that says "Please re-try in 60 seconds" in those rare cases where
there's a really fast human on the other end.
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Mar 2022 07:41:45 -0500
Received: from smtpgw.close.com ([52.11.177.187]) by mrelay.perfora.net
(mreueus003 [74.208.5.2]) with ESMTPSA (Nemesis) id
0Lrd0t-1oBvM40O6P-013MYj for ; Fri, 04 Mar 2022 13:41:45 +0100
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550
Deluxe but that doesn't make an
existing business relationship.
If I have a rewards type account with Kroger and have given them
permission to email me, going in to Kroger and buying a six-pack of Coke
doesn't mean that Coca-Cola now has the right to spam me.
P.S. People still
On 2/24/22 16:40, Grant Taylor via mailop wrote:
On 2/24/22 1:44 PM, Jay Hennigan via mailop wrote:
Assuming that your home connection is typical residential broadband,
consider a split system. Host your receiving SMTP at home with a
dynamic DNS tracker to keep the MX pointed at your dynamic
e fact that
the communication took place is trivial for three-letter agencies
without visiting your residence even if the content is encrypted.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
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that Microsoft knows how to subnet.
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ou.
4. Send email to the OrgAbuseEmail address.
Did you receive it? Do you check that mailbox regularly?
Many feedback loops depend on the WHOIS record being correct.
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
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__
erver on that IP only needs to fire one
customer and can keep the other 999.
The Internet has discovered that blocking spammy IP addresses is
reliable and effective. Sending domains are still mostly easily spoofed.
Filtering by domain is far less reliable than filtering by IP.
--
Jay Hen
erver on that IP only needs to fire one
customer and can keep the other 999.
The Internet has discovered that blocking spammy IP addresses is
reliable and effective. Sending domains are still mostly easily spoofed.
Filtering by domain is far less reliable than filtering by IP.
--
Jay Hen
tion, which we don't call "mailing
list". Perhaps UCE? Yes, they often sport unsubscribe URIs, since
they're mandatory in many countries, so as to masquerade as newsletters.
Precisely this. Rampantly this.
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #788
bscription" is the typical webinar/whitepaper spam that they never
wanted in the first place.
In my opinion, a single reply email, "You have been unsubscribed from
xyz mailing list" is a good thing to do.
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7
.
If the only way to send email to Microsoft or its customers is to use a
Microsoft product, they've won.
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Viewers" to anyone willing to pay for that data?
Don't forget that politicians conveniently exempted themselves from TCPA
and anti-spam laws.
How about content providers selling lists of which households watch
which adult PPV channels?
--
Jay Hennigan - j...@west.net
Network Engine
r FAQ. That question is:
"Why are you sending invitations to participate in this study from
fictitious accounts and throwaway domains instead of from a legitimate
princeton.edu address?"
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
You misspelled "We deliberately decided not to receive email from
independent senders".
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Status: 4.4.1
Diagnostic-Code: X-Postfix; delivery temporarily suspended: connect to
mx2h1.comcast.net[2001:558:fd02:243f::3]:25: Network is unreachable
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
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ess in "To:" header is: postmaster
Indeed. Dealing with an unqualified can be a real de joy.
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as a single
user or subnet. Linode should be allocating each customer subnet a /64
as a minimum.
If you're a Linode customer, demand a /64. Point them here:
https://datatracker.ietf.org/doc/html/rfc7421
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-855
ned a single /128 IPv6 address per server.
That is rather stupid behavior on Linode's part then. The rest of the
Internet uses a /64 per subnet and typically a /56 per customer minimum.
What are they thinking? Are they really worried about running out of
IPv6 addresses?
Vote with y
.
I think that you're missing the most common one, social engineering of
the users via phishing.
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to pull down the /24 aggregate prefix, only the services in
said /24 aggregate prefix would be harmed.
Put more simply, it makes snowshoe spamming harder to detect.
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Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
oblem."
You could tell your customers that Google is offering double their money
back on everything they've paid for Gmail so far this year.
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
___
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On 10/5/21 12:05, Jarland Donnell via mailop wrote:
It's not terrible advice. Google is more likely to filter to spam folder
from IPv6 addresses. Enough of us have seen it to know we're putting the
puzzle pieces together correctly.
Which on the face of it makes no sense. Spammers, especially
e since I saw one
with "ADV:" at the beginning of the subject line.
So it looks to me (not a lawyer and don't play one on TV) that according
to a different subsection of the very same statute it's perfectly fine
to block spam that doesn't begin with "ADV:", w
that can be accomplished with a good UX I
am very eager to hear it :-)
Maybe just send mail to them? :)
While you do this, also tell them to ignore phishing emails that claim
to be from their provider warning that their email account is at risk.
--
Jay Hennigan - j...@west.net
Network
ather than a one-size-fits-all approach. It sounds like you're on the
right track. And don't think that you're finished once you have these
things in place. There will always be new attack vectors.
--
Jay Hennigan - j...@west.net
Network E
Did you try postmas...@tds.net and postmas...@q.com ?
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get the credentials handed to them by their victim.
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he site and you know they'll spam you back to
the stone age and sell your address to anyone and everyone.
Using a disposable email to buy tickets to a single concert where
Ticketmaster is the only choice, as a mild example.
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
5
t a unique address with trillions left over. This would
severely limit collateral damage.
https://www.spamhaus.org/query/ip/2607:f8b0:4864:20::82d
confirms 'has been detected 1 times in the last month. It has been
removed 1 times.'
Any thoughts?
Bring it on, Spamhaus.
Reallocated
OriginAS: AS17216
Organization: Tier.Net Technologies LLC (TTL-100)
OrgAbuseHandle: ABUSE4758-ARIN
OrgAbuseName: Abuse Department
OrgAbusePhone: +1-888-518-0288
OrgAbuseEmail: abuse-t...@tier.net
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 89
hoop?
https://sendertool.vadesecure.com/en/
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On 7/24/21 03:38, Xavier Beaudouin via mailop wrote:
So now this is not SHOULD, but MUST. So Microsoft violate (once again) a RFC...
Embrace, extend, extinguish.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
uot;I am not a crook."
Lose the .sig and you'll likely solve the Google problem as well as save
billions of photons from an untimely death march through cyberspace.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
being aggressive about treating
bit.ly links as a sign of spam.
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from cloud providers/hosting companies known for being a
haven for those types of attacks, (should make a blog post on best
practices for authentication on email servers one day) but..
[snip]
Fail2ban can be very useful here.
--
Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
t to make the effort.
Is it actually possible to report email abuse to Microsoft?
You can report it. You might be asked to jump through a flaming hoop and
report it again in a different manner. Whether your report actually
results in action against the spammer is unknown.
--
Jay Hennigan - j
ivery from a given origin IP address,
it seems to me that the most logical test would indeed be to send email
from that IP.
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really REALLY do not want is for
your mail provider to silently discard messages. Either block at IP
level and don't accept them at all, reject them, deliver them to the
inbox, or deliver them to the spam folder.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - W
s Law: Any product released by a technology company with "Smart" in
it's name will do stupid things.
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htt
On 5/7/21 01:33, Alessandro Vesely via mailop wrote:
On Wed 05/May/2021 21:14:08 +0200 Jay Hennigan via mailop wrote:
Then my personal recommendation would be Mailchimp or possibly
Constant Contact if you're not comfortable with doing it in-house.
Thank you Jay for mentioning that.
tty widely blacklisted by multiple RBLs as well as many
private filters[1] due to sending quite a bit of spam/phishing/malware
that they have been unable (or possibly unwilling) to get under control.
[1] A mild example:
match as-path _11377_
set interface Null 0
--
Jay Hennigan - j...@west.n
On 5/5/21 12:04, Geoff Mulligan via mailop wrote:
No, it will not.
Then my personal recommendation would be Mailchimp or possibly Constant
Contact if you're not comfortable with doing it in-house.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - W
ed to receive bulk email from this company?
Will it involve sending to mailing lists purchased from or traded with
any other entity?
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Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
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On 3/1/21 08:01, Hector Malave via mailop wrote:
We only mail customers and people that opt-in via a quiz.
How do non-customers learn about the quiz?
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
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mailop
ver a practical reason for prefixes longer
than /64, but some people use /126 for point-to-point links out of habit
from IPv4 days.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
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mailop mailing list
mailop@mailo
jay$
jay$ dig +short outlook.com -t mx
5 outlook-com.olc.protection.outlook.com.
jay$ dig +short outlook-com.olc.protection.outlook.com -t
jay$
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
___
mailop
er to be spam.
I blame the big webmail providers for this. The "Delete" and "Junk"
buttons are too similar in the UI. Simply changing "Junk" to "Report as
spam" would help a lot.
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Jay Hennigan - j...@west.net
Network E
iltering abuse complaints through Google may well
be by design. They just as well could have used Mailinator considering
the amount of attention they give complaints of abuse.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
_
@relay.firefox.com. Relay will forward
messages to the primary email address associated with your account.
I suspect that spammy sites that demand an email address for one-off
transactions will refuse to accept these, like they do with Mailinator
domains now.
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Jay Hennigan - j...@west.net
t's the lack of consent.
This has been going on for a long time and is separate and apart from
their relatively recent delivery of phishing and 419 scams.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV
__
h of what comes from Sendgrid, is bulk unsolicited email. Sendgrid
are spammers. It doesn't matter whether they spam encouraging or
discouraging COVID vaccination, it's still spam.
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Jay Hennigan - j...@west.net
Network Engineering - CCIE #7
On 12/21/20 17:21, John Levine via mailop wrote:
Now they're sending antivax spam from the pseudoscientific Weston A. Price
foundation.
As long as the checks don't bounce, I don't think Sendgrid really cares
if the mail does.
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Jay Hennigan - j...@west.net
Network Engineeri
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