FAQforge

More and more internet access providers are closing port 25 to reduce spam except for connections to their own mailservers. If you run your own mailserver and have problems to connect to it on port 25, you can enable port 465 (smtps) in postfix as a workaround. Edit the /etc/postfix/master.cf file:

vi /etc/postfix/master.cf

and remove the # in front of the smtps line. Example for Debain 5, change the line:

#smtps     inet  n       -       -       -       -       smtpd

to:

smtps     inet  n       -       -       -       -       smtpd

and restart postfix:

/etc/init.d/postfix restart

1. Daniel says:

   December 16, 2009 at 3:37 am

   Postfix documentation directs use of ‘postfix reload’ to re-read configuration files including master.cf.

   The following is an excerpt from the description of the stop command in the postfix man page.

   “Note: in order to refresh the Postfix mail system after a configuration change, do not use the start and stop commands in succession. Use the reload command instead.”

   Reply
   • monkey says:

     February 17, 2010 at 6:05 pm

     for SUSE 11.1 does not fix it, and SMTP stops

     Reply
2. monkey says:

   February 17, 2010 at 6:04 pm

   Sorry, but after the release line “SMTPS …….” started soon and will SMTP or SMTPS not starts

   Reply
3. medwinz says:

   April 15, 2010 at 6:59 am

   @monkey

   For openSUSE you need to change the smtps become 465, it will look like

   465 inet n – n – – smtpd

   I use it and it runs flawlessly

   Reply