emails bouncing back

Molly Gamette 0 Reputation points
2026-11-10T17:26:27.58+00:00

One of my contacts told me she had 2 of my emails bounce back to her. This was a reply to my email so it originated with my email address.

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  1. Brian Tillman 28,295 Reputation points Independent Advisor
    2026-11-12T21:54:50.1166667+00:00

    Do you have a business subscription for Microsoft 365? Regardless, it's the sending address that is checked for the DNS records I mention and a personal account shouldn't have any issues. Thus, I'm going to step out of the way and let others weigh in.

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  2. Brian Tillman 28,295 Reputation points Independent Advisor
    2026-11-11T19:52:30.75+00:00

    You didn't say whether it was a personal or business address. I ask because lately, Microsoft's mail system has been very sensitive to missing DNS values that are designed to detect spoofed addresses If it's a business address and the DNS records are not configured exactly correct, the incoming messages could be rejected.

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  3. Brian Tillman 28,295 Reputation points Independent Advisor
    2026-11-11T01:30:58.5433333+00:00

    Is it happening only with the one sender? Is the sender using a personal address or a business address?

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  4. Brian Tillman 28,295 Reputation points Independent Advisor
    2026-11-10T21:57:27.4666667+00:00

    Hi. I'm Brian and I'll try to help.

    If your sender received non-delivery reports, the reason for the non-delivery can be found in the report. Can you contact the sender and ask exactly what the report says?

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