d_o_t wrote:
Apple Mail has suddenly begun to block my own email addresses- so that I can't send or copy emails to myself from another of my accounts.
I have to go into 'Settings' and unblock the addresses before I send to make sure I receive the sent message. (Of course, I usually forget and the sent message to myself disappears without a trace- after seemingly have been sent).
Every time I open Apple Mail, my addresses are back on the 'blocked' list.
Is there a permanent fix to this problem?
MacBook Air 15″, macOS 13.6
old issue, new issue, what changed...?
This is not a common error I have seen here, I really don't get it.
What exact mac is this?
What exact macOS is this.
Mail.app — and who is the email provider(?) is this @icloud.com ?
Is this just one address or multiple email address?
Going into settings where...(?) The only think I see is Junk. I have never had this optioned checked for any reason, and all I see there is phone numbers(?)— I would uncheck that just in general and compare your results.

Block or unblock senders in Mail on Mac
Block or unblock senders in Mail on Mac - Apple Support
If Junk mail is not working for you as expected you can turn it off in Mail>Settings.
If Junk mail is not working for you as expected—
Mail User Guide for Mac - Apple Support
Change Junk Mail settings in Mail on Mac - Apple Support
Reduce junk mail in Mail on Mac - Apple Support
Mail advanced junk mail settings on Mac - Apple Support
Change Junk Mail Advanced settings in Mail on Mac - Apple Support
Identify and filter junk mail in iCloud - Apple Support
Report and reduce spam in iCloud Mail - Apple Support
Manage junk mail in Mail on iCloud.com
Manage junk mail in Mail on iCloud.com - Apple Support