Alex Regan: > Hi, > > I have a fedora20 server with postfix-2.10.5 I'm trying to configure > rate limiting for outbound mail to google, yahoo, etc, in hopes of not > only building a better reputation with these systems, but also to > prevent my outbound pipe from being saturated. > > I've configured a few of the rate_delay parameters according to the > instructions here: > > http://steam.io/2013/04/01/postfix-rate-limiting/ > > It includes building two new transports in master.cf > > polite unix - - n - - smtp > turtle unix - - n - - smtp > > And in /etc/postfix/transport > > gmail.com polite: > yahoo.com turtle: > hotmail.com polite: > > In main.cf I've configured: > > transport_maps = hash:/etc/postfix/transport > polite_destination_concurrency_limit = 10 > polite_destination_rate_delay = 0 > polite_destination_recipient_limit = 5 > turtle_destination_concurrency_limit = 5 > turtle_destination_rate_delay = 3s > turtle_destination_recipient_limit = 2
As documented, 1) A non-zero rate delay forces a concurrency of 1. If you want to trickle email, sending it in parallel makes little sense. http://www.postfix.org/postconf.5.html#default_destination_rate_delay 2) If you change the destination_recipient_limit to 1, then you will regret it (the rate changes from per-domain into per-recipient which you probably do not want). http://www.postfix.org/postconf.5.html#default_destination_rate_delay > I believe the problem is that messages not destined for gmail, yahoo, or > hotmail no longer have a path, correct? As documented in the transports(5) manpage this table is optional. http://www.postfix.org/transports.5.html If nothing matches the table, Postfix uses the "default_transport" setting. http://www.postfix.org/postconf.5.html#default_transport > Feb 14 19:26:31 mail01 postfix/trivial-rewrite[16804]: warning: > transport_maps lookup failure You have an error in the file. Did you run the command "postmap hash:/etc/postfix/transport"? Wietse
