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1 vote

SPF spf.protection.outlook.com is invalid for messages within tenant

Your speculation about Microsoft's SPF/DKIM may be partially correct. Since the email is located in the same rental households, Microsoft may trust these emails by default, and will not apply the same ...
Billkirt's user avatar
4 votes
Accepted

SPF spf.protection.outlook.com is invalid for messages within tenant

Usually, these Authentication checks are performed at the Edge of the Organization's network, thus it would make sense for these headers to be absent in internal email flow. Other headers do offer ...
Reinto's user avatar
  • 1,023
2 votes
Accepted

Can I have more than one public keys saved in one selector for dkim?

In 2024, one key per entry, if I understood the RFC correctly. If you desire to obtain more precise information, RFC6376 (https://datatracker.ietf.org/doc/html/rfc6376) may prove to be of interest to ...
djdomi's user avatar
  • 1,923
0 votes

record DKIM on IONOS makes sense?

IONOS does now finally support DKIM. They added it recently, maybe September 2023 or maybe more recent. I found out earlier this week when my emails randomly started passing DKIM one day -- IONOS had ...
Dtor's user avatar
  • 101

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