AT&T POP3 e-mail "authentication problem"
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Cannot sent or receive POP3 e-mail to my AT&T e-mail account as of this morning. Webmail access is okay. POP3 access was okay last night, no upgrades or changes made since then. Error message says "Authentication Required", but the e-mail client log shows that SSL certificates were indeed accepted when trying to send or receive; the mail just didn't download or upload. I have been using the proper alternate ports for quite some time now.