On 16.02.2024 at 03:38 Matt Palmer via mailop wrote:
> Although I must say that
>> without reverse DNS
> would seem to be the easier blocking option -- when was the last time you saw
> legitimate mail from an IP without rDNS?
Unfortunately every day. It's true that 99% of legitimate senders ha
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. Otherwise the sender is unlikely going to fix his setup
>and rather blame the receiver, because obviously he can del
Hi,
Over the past two weeks, I started to notice an increase in the number of
S3150 rejections. Example:
550 5.7.1 Unfortunately, messages from [xxx.xxx.xxx.xxx] weren't sent.
Please contact your Internet service provider since part of their network
is on our block list (S3150). You can also refe
On Mon, 19 Feb 2024 11:15:44 -0300, Fernando MM via mailop
wrote:
>Hi,
>
>Over the past two weeks, I started to notice an increase in the number of
>S3150 rejections.
A significant percentage of my clients are seeing complete blockage at those
domains. At the moment the best we can offer is "
On 2024-02-19 04:46, Gellner, Oliver via mailop wrote:
On 16.02.2024 at 03:38 Matt Palmer via mailop wrote:
Although I must say that
without reverse DNS
would seem to be the easier blocking option -- when was the last time you saw
legitimate mail from an IP without rDNS?
Unfortunately
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
> On 19.02.2024 at 17:15 Michael Peddemors via mailop wrote:
>
> On 2024-02-19 04:46, Gellner, Oliver via mailop wrote:
>>> On 16.02.2024 at 03:38 Matt Palmer via mailop wrote:
>>> Although I must say that
without reverse DNS
>>> would seem to be the easier blocking option -- when was the la
[Piggybacking as I didn't see Matt's message directly]
On Mon, 19 Feb 2024, Gellner, Oliver wrote:
On 16.02.2024 at 03:38 Matt Palmer via mailop wrote:
Although I must say that
without reverse DNS
would seem to be the easier blocking option -- when was the last time you saw
legitimate
Not sure exactly how long but at least 2020. I moved IPs when my server
was moved and rDNS took a day or two to get updated and mailed bounced
during this time.
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On 19/02/2024 14:15, Fernando MM via mailop wrote:
> I was wondering if anyone else is also experiencing this type of issue?
It still happens every 10-12 weeks for me. It's getting increasingly
difficult to get them to implement "mitigation".
For example (these are all responses over 24 hours fo
On Fri, Feb 16, 2024 at 02:49:12PM -0600, Jesse Hathaway via mailop wrote:
> Does probing for recipients work these days, is it considered abusive?
It rarely works they way you might hope. And yes, we consider it
abusive.
PG
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