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Verified User
- Joined
- May 26, 2019
- Messages
- 40
Hi,
We are experiencing huge email issues to Microsoft email accounts despite valid SPF, DKIM and DMARC setups. Mail goes directly into SPAM for only outlook/hotmail etc addresses - No problem with GMail or other providers.
We have also valid PTR/rDNS and our IP is not blocked on any public RBL. We have minimal email traffic and no spam issues.
We have contacted Microsoft and awaiting reply - We even tried to use a brand new IP address (thought maybe IP was blocked in their internal lists) but neither that helped.
We also tried to test on a server which was on another IP block - Same issue.
After spending enormous of time, i now suspect the headers in EXIM to trigger a this false spamflag at outlook. A quick google search reveals many identical issues.
One post from a guy gave me a hint that it is due to exim headers. See last comment in this thread:https://github.com/MicrosoftDocs/OfficeDocs-o365seccomp/issues/211#issuecomment-523865562
So anyone else having issues and tried similar? I havent changed anything.
Running:
DA latest version CB2
EXIM latest version
blockcracking yes
easy_spam_fighter yes
A typical standard setup with no relay or smarthouse etc.
EDIT: Solution found. Contact Microsoft and explain them the issue. I used this link: https://support.microsoft.com/en-us/supportrequestform/8ad563e3-288e-2a61-8122-3ba03d6b8d75
Scroll down and read my post as well.
We are experiencing huge email issues to Microsoft email accounts despite valid SPF, DKIM and DMARC setups. Mail goes directly into SPAM for only outlook/hotmail etc addresses - No problem with GMail or other providers.
We have also valid PTR/rDNS and our IP is not blocked on any public RBL. We have minimal email traffic and no spam issues.
We have contacted Microsoft and awaiting reply - We even tried to use a brand new IP address (thought maybe IP was blocked in their internal lists) but neither that helped.
We also tried to test on a server which was on another IP block - Same issue.
One post from a guy gave me a hint that it is due to exim headers. See last comment in this thread:
So anyone else having issues and tried similar? I havent changed anything.
Running:
DA latest version CB2
EXIM latest version
blockcracking yes
easy_spam_fighter yes
A typical standard setup with no relay or smarthouse etc.
EDIT: Solution found. Contact Microsoft and explain them the issue. I used this link: https://support.microsoft.com/en-us/supportrequestform/8ad563e3-288e-2a61-8122-3ba03d6b8d75
Scroll down and read my post as well.
Last edited: