SPAM + Quarantine

Hi all,

need help with Quarantined emails.

Issue:

sender "A" forwards emails to recipient "B".

B never receives these emails because they end up in Quarantine marked as PHISH.

Sender "A" email address & domain are both white-listed.

Recipient B has no rules in the mailbox that would block these messages.

Message trace has "Quarantine: no additional info provided".

In "Message Analyzer" I've found AntiSPAM-Report - SFV:SPM which means "The message was marked as spam by the content filter."

I can't find the responsible "filter" that is causing this issue.

I've tried to search by "domain" in rules, but nothing comes up.

Any ideas?