I don't know what has happened here but nobody can receive e-mails. The sender gets the following message returned to them: SMTP error from remote mail server after RCPT TO:<[email protected]>: host mail.mydomain.com [xx.xx.xx.xx]: 554 <[email protected]>: Relay access denied What the heck is wrong? Thanks
1) Is the domain mydomain.com listed in the file /etc/postfix/local-host-names? 2) Are these lines in your postfix main.cf file: virtual_maps = hash:/etc/postfix/virtusertable mydestination = /etc/postfix/local-host-names 3) If you are sending mails and you are getting this error, make sure that you enabled SMTP Authentication in your email client. In outlook it is nemd "Server requires authentication".
