On 7/4/2012 11:19 PM, Noel Jones wrote: > On 7/4/2012 10:40 PM, F. Mendez wrote: >> Hello everyone. >> >> >> Just a quick question. >> >> I'm starting some tests with 2 boxes. >> >> How can I gran to have postfix in queue only mode?. Postfix must >> only receive mails into the queue without sending them inmediately >> as they come. And that sending process can only be started from a >> call from cronjobs each 10 minutes for example. >> >> I was able to do this with exim, but I moving to postfix which is >> stronger. But on exim it has a queue only mode, so it only send >> mails each time its called from cron, and this happens every 10 >> minutes. This task does not disables queue only mode. > > > # main.cf > defer_transports = smtp > to defer all mail, then run "postfix flush" or "sendmail -q" to > trigger delivery. This is OK for testing, but I can't imagine why > you would want to do this on a regular basis. > > http://www.postfix.org/postconf.5.html#defer_transports > > Note: flushing the queue when it contains lots of undeliverable mail > results in poor performance for the mail that can be delivered. > > >> >> One last question, how can I limit the number of conections the MTA >> can stablish to a remote host. Lets say there are in queue 100 mails >> from mymail.com host, how can I managed to have postfix only make 20 >> conections to any domain at a time no matter how many mails it has >> on its queue from that domain. > > Postfix default settings are generally sensible. > > http://www.postfix.org/postconf.5.html#initial_destination_concurrency_limit
oops, the above should be http://www.postfix.org/postconf.5.html#default_destination_concurrency_limit -- Noel Jones > http://www.postfix.org/postconf.5.html#initial_destination_concurrency > > and for an overview on postfix queues: > http://www.postfix.org/QSHAPE_README.html > http://www.postfix.org/TUNING_README.html > > Read all about postfix here: > http://www.postfix.org/documentation.html > > > > > -- Noel Jones >
