45.137.126.85, known spam source.. But yeah, Cloudmark is no longer the
same quality as it used to be..
On 8/1/24 14:36, Mark Alley via mailop wrote:
On 8/1/2024 4:18 PM, Scott Q. via mailop wrote:
CloudFilter is Proofpoint, right ?
We still gets tons of Spam from them. Not sure if this is re
They best way is to address that in the egress router.
Most routers nowadays can have alerts and triggers based on traffic, so
simply create a router policy that sends an alert when too many tcp syn
packets out from an IP attempt to connect to remote IPs on port 25.
You can do this for many di
On 6/26/24 04:24, Jeff Peng via mailop wrote:
On 2024-06-26 15:11, Gellner, Oliver via mailop wrote:
On 26.06.2024 at 00:24 Jeff Pang via mailop wrote:
since aws ses was blocked, other esp such as mailchannel, mailgun,
sendgrid can be blocked also?
That's a good idea, except when you hav
You do realize you forgot to provide your IP Address ;)
On 4/3/24 15:56, Claudio Faoro via mailop wrote:
Hi everyone,
a couple of weeks ago I configured a new Postfix server, it's used
exclusively by a newsletter service with 2 subscribers.
The newsletter service has been active for more t
It would be helpful if Meta used a better PTR naming convention for
these servers.. ;)
host 66.220.155.136
136.155.220.66.in-addr.arpa domain name pointer
66-220-155-136.mail-mail.facebook.com.
Not sure who dreamed up that one..
On 2/1/24 02:18, Philip Paeps via mailop wrote:
On 2024-02-01
Interesting note in passing, some customers who also had spamcop in
their RBL listing has noted that even some Microsoft outgoing IPs are
appearing on that RBL.. (cannot confirm)
Not that they don't deserve it, but rejecting based on that RBL might
cause some grief, better to use it as a scori
For the record,it's all of the Azure, Google, AWS Cloud, Tencent and
many other cloud providers that are now abused for BEC Email Compromise,
and dictionary attacks.
Since very few 'servers' are used for email authentication/clients it is
quite effective to block email auth from those provider
Always terrible when big ESP's simply say 'Remove Us' and think it will
happen because they are big, instead of 'asking' why you are being
flagged, and what can you do to improve your reputation..
Especially as a 'Financial Services' related business, the onus is on
you to ensure that you are
Remember, those limits were set in a 286/1200 baud world, but a sane limit
should still be observed, 30-50 hops is plenty
On Wed, 9 Mar 2022 17:05:38 -0800
Brandon Long via mailop wrote:
> Ours was set to 50 years ago, and we renamed our internal hops to
> X-Received to avoid issues with externa
Umm.. not helpful, and if you are going to make inflammatory remarks, please
sign it with your name..
Really isn't fair to call out Qmail, Dan Bernstein did an incredible amount of
good in his day, and what version of Qmail are you using? Tell me if you see
this happening in your logs, and if
Its a little different running a hobby mail server. vs being responsible for
say an ISP with 100,000's of end users.
And while technically, there isnt' many old computers that dont' support Let's
Encrypt any more, nothing is free.. eg I heard it's estimated that Gmail makes
between $2 and $3 do
Opening up another pet peeve I see..
Yes, (and absolutely no reflection on the MS lurkers on this list) this is a
pain point, of our team as well.
A lot of attention was given to Microsoft's role in take down's of miscreants
that are attacking them, but when the attacker is on Azure, the story
What's the consensus on sendgrid.net? I don't know anything about them,
but I had the impression that they were a reputable company. Lately,
I've noticed a lot of phishing emails coming from them. Does anyone just
block them completely?
___
mailop ma
you? If you are 100% certain you aren't sending suspicious
email activity from that IP Address.
On 2020-04-21 8:52 a.m., Norbert Bollow via mailop wrote:
Maybe it's not specifically you server's IP that's on the blacklist,
but an IP range belonging to your ISP (which includes your
My server's IP is on the hotmail blacklist. I can't find any details as
to why. I only have four users and we don't send any bulk mail. Mostly
just a small law firm communicating with clients. I'm set up with SNDS
but I don't see any details there that let me track down the source of
the blackl
Frankly, AWS abuse has to step up their game. Long take down cycles, not
sharing information, no SWIP/rwhois for customers, all of these things have
contributed to more and more reputation problems.
Not that Azure or others are completely better, but this will have to be
something AWS customer
Based on all the activity our team has seen of late, not surprising, make sure
you get dedicated IP for sending, with correct PTR record reflecting your
company
Merry Xmas all the great peeps on this list from the beaches of Mexico!
On Fri, 20 Dec 2019 16:51:35 -0800
Brad Slavin via mailop wro
As much as I would like this thread to die, had to point out.. yes, probably
gmail does a great job of inbound spam protection, had an ESP recently tell me
40% of all addresses they engaged with were gmail addresses, so it behooves
them to do well, wish as much attention was paid to outbound, i
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