Hello,
we had similar issues, sometimes with IP addresses that have NOT been
sending emails for months.
Approx. one month ago we registered all the IP addresses with SNDS
(Smart Network Data Service) *and* JMRP (Junk Mail Reporting Program).
Paying great attention to each complaint. The block
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 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 "
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
