In the Server Settings ensure that the information below has been entered. To create a new outgoing server for this account click on to the plus sign (bottom left of the white panel.) To remove the outgoing server for this account click on to the minus sign (bottom left of the white panel.) Step 4: Delete the old SMTP (outgoing) serverīefore you delete the outgoing server, make sure the highlighted line in the white panel does reference the account that needs adjusting. To get to the Outgoing Mail Server list click on the button that can be found next to Account (Just under Outgoing Mail Server) and the go to Edit SMTP Server List.
Select Server Settings (on the right of Mailbox Behaviours) Select the account that requires attention from the white panel on the left.
Go to Server Settings, Edit SMTP Server List and proceed by removing and recreating the outgoing mail server. Go to Mail, Preferences and the select the email account in question. Apple Mail verifies the account details and maps the server.