Spam Messages Appearing in Inbox from No Sender with No Content

SpamSieve
,
1

The latest version of Spam Sieve (3.3.1) installed on my Mac is filtering spam to my junk email boxes in mail.app on their various servers, but is now leaving copies of the spam messages (with the assigned spamminess color) with the same subject in my inbox but changing the sender to No Sender and with the actual message empty of content.

I cannot do a search for “no sender” in mail.app and, after a time, if I switch to a different mailbox, the messages disappear.

Is this a known bug? Does anyone know how to fix it?

No Sender in inbox
No Sender in inbox580×810 38.4 KB

MacBook Pro Air, M4, 16GB Memory, Tahoe 26.6.2

2

It’s not a SpamSieve bug. It sounds like your Mail database is damaged and needs to be rebuilt.

3

Okay, I’ll try that. Thank you Michael.