Wietse: > According to these: > > http://www.postfix.org/postconf.5.html#smtp_mx_address_limit > http://www.postfix.org/postconf.5.html#smtp_mx_session_limit > > The Postfix SMTP client will try at least five IP addresses or two > SMTP sessions, When it reaches either limit, Postfix will > try another delivery later for several days. > > The retry schedule behaves as documented at: > > http://www.postfix.org/TUNING_README.html#hammer
Michael Maymann: > Hi Wietse, > > thanks for your nice comments. > > I guess what you mention is valid for "my internal postfix relay > server"->"ISP mailserver" - or am I mistaken ? What I write is valid for the Postfix SMTP client, whether it sends mail to your ISP, or to your internal mail server. Wietse