Some of our Users with redirection enabled in their exchange mailboxes are getting many of these messages:
Your message to the following recipients was quarantined:
<external.address@gmail.com>, quarantine reason: Spam ()
Please contact your IT administrator for further assistance.
What seems to happen is this:
The incoming emails seem to go through the utm spamfilter without any problem to the users exchange mailbox. there it is beeing redirected to the users external emailprovider and for some reason it is beeing filtered by the utm outgoing spamfilter
Why is this happening?
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