On 2012-02-28 santosh malavade wrote: > In my mail server, i have enabled sender access using the following > parameter. > > smtpd_recipient_restrictions = check_sender_access > hash:/etc/postfix/sender_access, check_recipient_access > hash:/etc/postfix/sender_access reject > > This was rejecting the mail with the 554 Recipient address rejected: > Access denied
That's because you added an explicit "reject" at the end of smtpd_recipient_restrictions. Remove it and the problem will go away. > Now, I have enabled null sender using <> in file > /etc/postfix/sender_access, based on the information available in > http://www.postfix.org/access.5.html ( refer Note: in section EMAIL > ADDRESS PATTERNS ) That is unnecessary. Postfix' default configuration is safe. The default implicit "permit" in smtpd_recipient_restrictions does not make your server an open relay. It just means that it will accept mail for its $mydestination domains. > Now, my concern is my mail server should not be an OPEN RELAY. > > I tried checking it on http://www.checkor.com/ Although, the results > are negative, the site has the following disclaimer. > > * We do our best to check to see if you mailserver is an open relay. > Even if your mail server tests negative on this site, it may still not > be 100% secure > > Pls. suggest. Please post the output of "postconf -n". Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky
