Forum Discussion
Outgoing emails marked as SPAM and Phishing emails by O365 servers
You might want to read the following article on the "health" tab in the office portal...
I noticed in the Message Header -
| http://go.microsoft.com/?linkid=9837881 | None (protection.outlook.com: gmsuae.com does not designate permitted sender hosts) |
So would suggest to check if the sender domain is added in the allowed domain settings in Security and Compliance center.
1. Sign in to O365 Admin Portal
2. Navigate to Security & Compliance center > Threat management > Policy.
3. Find Anti-spam, open it. Expend Allow lists. Add the sender’s domain to the Allow domain setting.
HiRnishat0786 ,
Thanks for the suggestion. We already have the domain added in the Allow list of Anti-Spam policy.
Could it be that the domain is showing as SPF not designated because it is still an internal email within Office365 servers ?
if the Domain is added in the Allow list, then I would suggest to submit the message to MS and let them know that it is not Spam. I know & understand that you are already working with MS on this however I would like you to refer to the steps given in the below article....
https://docs.microsoft.com/en-us/office365/securitycompliance/submit-spam-non-spam-and-phishing-scam-messages-to-microsoft-for-analysis
(Submit messages that were tagged as junk but should have been allowed through)
Secondly the proof that MS Servers are marking your email as Spam is that in the header - Anti Spam Report - It has SFV-SPM that means the email is marked as Spam because of the EOP Spam filters.
Reference Article - https://docs.microsoft.com/en-us/office365/SecurityCompliance/prevent-email-from-being-marked-as-spam
Moreover do check if the emails that you are sending has any HTML Signatures or they are simple text.