Block Sender in Apple Mail No Longer Works

In Tahoe 26.3.1, when I execute the "Block Sender" command on a specific e-mail address in Apple Mail, I no longer get a slashed circle icon to indicate the sender is now on my blocked list. Any work arounds out there or is this a bug that Apple has not acknowledged yet?

Posted on Apr 20, 2026 8:48 AM

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Posted on Jul 24, 2026 12:53 PM

Yes it unblocks them and you have to start fresh. I haven't seen a bombardment of spam (yet). Double check that on the phone: I could 'block' and the red circle/slash would show. If I went to any other mailbox and then back, the red circle/slash would be gone and the contact was not blocked or in my blocked list.


I went nuclear and deleted all previous blocked contacts on the Mac, It could be just one blocked contact that triggers the issue but I didn't have time to go through one-by-one to determine which one it might be.


Since deleting all previous blocked contacts, the blocking function works again across all of my devices.

22 replies

Jul 24, 2026 3:18 AM in response to grandy1214

Digitool - thank you for the potential solution. I'll get to work trying this solution. I too have a high number of blocked contacts in my mail. Somehow, with the use of AI to generate spam, I have the feeling that I will end up with more than I removed eventually! I appreciate you sharing your knowledge. Fingers crossed that it works - at least until the next OS edition...

Block Sender in Apple Mail No Longer Works

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