Enter the account username and password, and click "start" to verify (or select the repair option to fix any problems found during verification). To do this, open "Keychain Access" (in the Utilities folder) and select "Keychain First Aid" from the "Keychain Access" menu. Reset and repair keychains The authentication information for SMTP servers is stored in the user's keychain, and repairing and resetting the keychain may solve the issue. However, it is recommended that users try other fixes before resorting to this working, as it will remove all previously downloaded messages, as well as reset all custom mailboxes and organization. Lastly, it may be possible a corrupt file in the "Mail" folder itself ( /username/Library/Mail/) could be causing the problem, and resetting all accounts completely by both removing the preferences file as well as removing the "Mail" folder could clear the problem. Sign back in and open Mail, set up the accounts and try again.Go to the MobileMe system preferences and sign out.Quit Mail and delete the Mail preferences files (Fix #1 above).
The Mail application receives incoming messages properly, but when users attempt to send messages they are presented with errors such as "The sender address was rejected by the server ." In other cases, the server simply goes offline and will not send messages.Īpple Discussions poster Rodi OLeary writes: Many Mail.app users are experiencing an problem in which the application will not send.