My guess is that you have both maine.rr accounts trying to use the same SMTP server. You can check that by clicking 'account settings' and scrolling down to 'Outgoing servers SMTP' and clicking the link. You should see five SMTP server settings, one for each account. For the two for maine.rr, change the DESCRIPTION field to contain the full email address for the accounts. THEN, click account settings , then click the account name in left side and then look at bottom line in right pane. you should see the email address for that account in the outgoing server field. if not, click the dropdown there and select the proper one.