I get this message when a mail is sent from an email account on my server to another email account, in this case a .mac account.
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Nov 11 12:39:01 HRPWebServer1 postfix/smtp[17869]: AA7D6411DF: to=, relay=smtp-mx.mac.com[17.250.248.49], delay=4, status=deferred (host smtp-mx.mac.com[17.250.248.49] said: 451 4.1.8 Domain of sender address dbrateris@eapmanager.com does not resolve (in reply to MAIL FROM command))
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Can anyone help me out?
Dan