I had this problem about a year ago. “Unfortunately, messages from [135.181.139.185] weren’t sent. Please contact your Internet service provider since part of their network is on our block list (S3150).” Can you resolve thus urgently please… Regain your privacy! Adopt /e/OS the unGoogled mobile O…

I use evolution with autoconfig from a clean state (removed account and re-added) for sending it will use mail.ecloud.global with starttls on port 587 (as the autoconfig will set this to) no issues. Not sure how you got there, but a fix is either setting the correct sending domain, port and startt…

Email issue starting again

Using /e/OS

swarfendor437 April 23, 2025, 3:48pm 3

This was the issue last time:

It got fixed fairly quickly. Suspect Microsoft is desperate for custom.