Sonicray wrote:
Have you set it to delete the messages in the mail server also or are you keeping the old messages in the server? If you keep them in the server, then they will be downloaded again the next time you sign in.
there is a checkbox in Mail > Preferences > Accounts > Advanced "Remove copy from server after retrieving message". |
That's incorrect, whether or not you keep them on the server they should not reappear after deletion, immediately if they are local or after the next mailbox sync if they are on the server, assuming this is an iMap account, if it's POP they are downloaded to the local machine (unless 'remove from server' is unselected) in which case they will stay until removed from the explicitly.
Can't answer this question without knowing email type, POP, iMap or Exchange