eFa V4 to V5 - Increased Spam being blocked

[vimtoenergydrinker]

Hi,

We've recently migrated to eFa V5 using the migration guide from eFa V4 and we've noticed an uptick in emails getting logged as spam. We'd normally get like ~5 emails a day in spam but we are now getting upwards of ~40

If we've done a backup and restore my thoughts would be that the spam filtering through would be the same. So I was wondering if there would be any other reason for this increase?

Thanks in advance for any help

[shawniverson]

Are the emails being blocked actually spam?

eFa5 includes SpamAssassin 4.0, which may explain the increase in flagged emails. I would expect it to be performing better than previous versions of eFa.

[vimtoenergydrinker]

For the most part is is spam. So that part is a non-issue

We are however noticing an increase in automatic reply emails with no sender going into spam, then needing release before being sent.

Is this to be expected or not?

[shawniverson]

Automatic replies with no sender are tricky. These tend to come from mailer-daemons when emails bounce (soft-fail or perm-fail) from MTAs. MailScanner tries to detect them with a watermark in the header, but oftentimes that gets stripped out. If you are having trouble with this, you can try changing the following setting in /etc/MailScanner/MailScanner.conf:

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Check Watermarks With No Sender = no

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sudo systemctl restart mailscanner