Active attglobal.net encountering mail delivery failures 551 not our customer
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Many of my longtime business customers are receiving bounce back emails from ATT mail servers. My attglobal.net account is Active.
Final-Recipient: RFC822; nnnnnnn@attglobal.net Action: failed Status: 5.1.1 Remote-MTA: dns; mx1.prserv.net (12.154.55.40) Diagnostic-Code: smtp; 551 not our customer
Final-Recipient: RFC822; nnnnnnnn@attglobal.net> Action: failed Status: 5.1.1 Remote-MTA: dns; mx2.prserv.net (12.154.55.40) Diagnostic-Code: smtp; 551 not our customer
Many of my longtime business customers are receiving bounce back emails from ATT mail servers. My attglobal.net account is Active.
Final-Recipient: RFC822; nnnnnnn@attglobal.net Action: failed Status: 5.1.1 Remote-MTA: dns; mx1.prserv.net (12.154.55.40) Diagnostic-Code: smtp; 551 not our customer
Final-Recipient: RFC822; nnnnnnnn@attglobal.net> Action: failed Status: 5.1.1 Remote-MTA: dns; mx2.prserv.net (12.154.55.40) Diagnostic-Code: smtp; 551 not our customer