Has anyone come across a strange issue with O365's spam filter, where
some addresses on a domain go straight to spam but other addresses
don't, when they are all G Suite addresses?
We've noticed 3 of our staff have their emails reliably going straight
to spam for O365 destinations, but everyone else can send emails just fine.
The affected users are all using Gmail directly (no email clients),
nothing fancy at all and I can't see any reason why they would have been
affected.
I'm at a bit of a loss as to where to go from here:
- DKIM, DMARC and SPF are all set up correctly
- G Suite support wasn't much help as the emails are being delivered
correctly, and they verified DKIM, DMARC and SPF.
- We've got SNDS for our mail server (for our servers) of course, but
these emails are being delivered directly through GMail not our own servers.
- I can't use the form to open a ticket for Outlook.com delivery issues
as our servers aren't doing the sending, and there aren't any logged
errors (the emails aren't being rejected).
- No bulk marketing or anything has been sent from the affected users,
so I can't imagine anyone would have manually marked emails as spam.
- This issue occurs to all client O365 domains, I've looked at about a
dozen different destination O365 domains.
It's all a very weird scenario. Any suggestions would be appreciated.
--
Nick Stallman
Technical Director
Email n...@agentpoint.com <mailto:n...@agentpoint.com>
Phone 02 8039 6820 <tel:0280396820>
Website www.agentpoint.com.au <https://www.agentpoint.com.au/>
Agentpoint <https://www.agentpoint.com.au/>
Netpoint <https://netpoint.group/>
Level 3, 100 Harris Street, Pyrmont NSW 2009 Facebook
<https://www.facebook.com/agentpoint/> Twitter
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<https://www.linkedin.com/company/agentpoint-pty-ltd>
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