Mail won't delete messages from Inbox

My Mail program has stopped deleting mails from my Inbox. I highlight a message, hit the delete button (as I always have done in the past), and it goes away. But the next time I open my Inbox all the messages I have deleted are back in my Inbox. They used to go to my Trash mailbox. Any idea what's going on? Thanks!

You will need to provide more specific information? macOS? Mail program and version? Email service provider and mail type?

While you're providing the info Bob asked for, try this.

Open Mail. Click on Inbox. Now Go to Top Menu Bar and Click on Mailboxes. From the dropdown, select Rebuild - the last one on the list.

See if that sorts it.

Please post back.

Ian

ferrarr said:

You will need to provide more specific information? macOS? Mail program and version? Email service provider and mail type?

Click to expand...

High Sierra; Mail (part of OS) Version 11.2 (3445.5.20); Gmail; not sure what you mean by mail type.

Thanks, Ian. I've tried Rebuild. I'll see if it works.

Mail type would be either IMAP or POP3.

It worked! Apparently the mailbox needed a rebuild.

Great. Simple solution, as is sometimes the case which is why it was suggested earlier in post #3.

A happy ending.

Ian