Postfix not sending email

I have postfix set up on my linode, and in windows outlook, I have it set up to use my email addess, I can recieve email find, and I can send email to other users on my linode, but I can not send email out to the internet.

I opened /var/logs/mailog and I see this

> Jan 8 22:55:22 li20-14 postfix/smtpd[2523]: connect from[]

Jan 8 22:55:23 li20-14 postfix/smtpd[2523]: NOQUEUE: reject: RCPT from

[]: 554 5.7.1 <>: Relay access denied; from=<>

to=<> proto=ESMTP helo= Jan 8 22:55:25 li20-14 postfix/smtpd[2523]: disconnect from[]

When I had my old managed server, I worked fine, so I must not have something setup right can anyone help?


2 Replies

You need to set up a mechanism so that Outlook can authenticate to your SMTP server. Also, since you'll then be sending passwords across the wire you'll want to set up TLS. Check out these documents:

Here is an example SMTP-AUTH with MySQL as backend and authenticate with SASL+PAM(SSL)=>MySQL.


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