How do I fix relay access denied in postfix?
How do I fix relay access denied in postfix? 1. To Open e-mail from all network , just add "0.0. 0.0/0" in "/etc/postfix/main.cf". If you want restrict it to certain network please mention it explicitly. How do you fix a relay access denied? How to fix Relay Access Denied Error in Mail.Verify Mail Server Settings and Account Credentials. Enable SMTP User Authentication & Secure Connection. Verify Email Settings with your Email Provider & Scan for Viruses. Check if your Mail Server or your Domain is Listed at SPAM (BLOCK) lists. Can't send mail all recipients were rejected 454 4.7 1?...