DavidR
2
I would say that this is a question for SpamAssassin and or ISP.
But a guess receiving lots of emails from the same source and having a very short paragraph and a link could well have some anti-spam tools twitching.
When you consider avast has hundreds of millions of avast users and a very high number of forum users being notified of new replies to topics you are watching.
I use MailWasher Pro and I haven’t had one notification email flagged.