Hi People, This user, citi.com send mail to mydomain, in the log file (postfix) verify messagem:
Oct 30 13:46:23 mx postfix/smtpd[27167]: NOQUEUE: reject: RCPT from smtp2.citigroup.com[192.193.221.103]: 451 4.3.5 Server configuration problem; from=<[EMAIL PROTECTED]> to=<[EMAIL PROTECTED]> proto=ESMTP helo=<mail.citigroup.com> whats this is problem? -- Márcio Luciano Donada <mdonada at auroraalimentos dot com dot br> Aurora Alimentos - Cooperativa Central Oeste Catarinense Departamento de T.I.
