Postfix SMTP Port

Hi all

I want, that postfix has only port 25 authentificated and port 587 authentificated open.

How could I do this?

Thanks
admins

 

I've it:

Code:

587      inet  n       -       -       -       -       smtpd
  -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject
25      inet  n       -       -       -       -       smtpd
  -o smtpd_recipient_restrictions=permit_sasl_authenticated,reject

 

May how could I deactivate port 25 for outgoing mails?

Thanks
admins

 

That doesn't sound like a very good idea? The server even if you are only receiving emails still has to send out bounce messages and other communication.

This line in the master.cf file pretty much explains what you need to do to secure the server from spammers.

Code:

#submission inet n       -       -       -       -       smtpd
#  -o smtpd_enforce_tls=yes
#  -o smtpd_sasl_auth_enable=yes
#  -o smtpd_client_restrictions=permit_sasl_authenticated,reject

Of course you want to remove any #'s in there.

This is all explained in various How To's on the site. A little searching will pull this information up with out a problem.

Thanks,

Fred