On 8/23/2012 9:20 PM, li...@sbt.net.au wrote: > setting up new Postfix 2.6.6 server on Centos 6 with SMTP AUTH > > sending is only allowed with SMTP AUTH on 587 > > should I set smtpd_tls_auth_only = yes ?
That setting is commonly used on port 587/submission so that credentials are not sent in the clear. > currently have 'no', is likely to bite me if I change to 'yes' ? If you have users connecting to that port that have not enabled STARTTLS, they may call for support. Since this is a new server with presumably few or zero live users, now is a good time to require encryption. -- Noel Jones
