Forum Discussion
Anti-spam protection policy (scan2mail) false positives
Hi all, there seems to be a big change in the default anti-spam protection policy settings in Exchange Online. Since today a lot of our customer's emails (scan2mails) are suddenly filtered as SPAM. ...
Problem appears to be slackening.
Submission verdicts all come back "Not spam. Should not have been blocked."
Nothing relevant in Service Health indicating there was a problem.
EX530821: Exchange Online Service Health Notification
Some users' email messages are unexpectedly delivered to the Junk Email folder or quarantined in Exchange Online
Final status: We’ve determined that a recent update to optimize the detection proficiency of potential spam prior to delivery caused some legitimate messages to be incorrectly flagged and delivered to the Junk Email folder or quarantined in Exchange Online. We’ve published an update to our detection systems to address this issue and confirmed via telemetry that that the issue is resolved.
Some users' email messages are unexpectedly delivered to the Junk Email folder or quarantined in Exchange Online
Final status: We’ve determined that a recent update to optimize the detection proficiency of potential spam prior to delivery caused some legitimate messages to be incorrectly flagged and delivered to the Junk Email folder or quarantined in Exchange Online. We’ve published an update to our detection systems to address this issue and confirmed via telemetry that that the issue is resolved.