A recent software update, probably from my server, att.net caused a full day of problems that slowly resolved themselves, but I still can't send emails. The error message is; "'''''An error occurred while sending mail. The mail server responded: Email rejected. '''Please verify that your email address is correct in your account settings and try again'''.'''''" I have checked my email address in settings and outbound server settings, and see nothing changed or abnormal. I'm using G-mail as a back-up, now, and I still receive inbound messages in Thunderbird. Thanks for any help. Denis