mark blackman aanmexonetriccom 28 feb 2008 1320 vu cuong wrote 1 dynamic ip address dyndnscom xxxdyndnscom 1 gmail account bsefngmailcom successfully setup postfix send mail outside postfix relay useragmailcom recipients received mails open mail address theses mails bsefngmailcom userbxxxdyndnscom want change recipients received mails open mail address theses mails abponxxxdyndnscom useragmailcom way believe gmail rewrites header reflect authenticated sending account mark fri 08 aug 2008 045359 0000 relay gmail