Mail to info@ bounces back and forth and fails
Classic alias loop. Address A forwards to B, B forwards to A, or a distribution list contains itself. Mail servers detect this and stop the message after a few hops.
support/email-aflevering/alias-loopsteps: 4
Try this first
- Sketch on paper who forwards to whom. Start at the address that received the bounce.
- Look for addresses listed in each other's forward setting, or a group containing itself as a member.
- Break one link: turn the forward off or remove the self-membership.
- Test with one external mail, not from another internal address, which can mask the loop.
When to bring us in
Lost track of who forwards what? We will pull the map from your tenant and cut where needed.
See also
- Our emails land in spam for some recipientsAlmost always an SPF, DKIM, or DMARC setting that is wrong or missing, or a sender name that mimics a well-known brand.
- Someone reports receiving phishing emails "from us"Read: spoofing. Someone is abusing your sender name, not necessarily your actual mailbox.
- An email bounces (NDR): delivery failedThe NDR text usually states the exact reason. Reading it is step one.
None of the above fits?
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