Hi Wietse, That' great in Postfix 2.5, but if I am still using Postfix 2.3, how can I deal with it? Since I may not plan to upgrade to Postfix 2.5 soon.
Thank you very much! Yours Sincerely, Jacky, Hoi Kei Chan, Technical and User Support Section, Information and Communication Technology Office, University of Macau ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ DL: (853) 8397 8630 [EMAIL PROTECTED] wrote on 22/10/2008 下午 08:11:26: > [EMAIL PROTECTED] (Wietse Venema) > Sent by: [EMAIL PROTECTED] > > 22/10/2008 下午 08:11 > > Please respond to > Postfix users <postfix-users@postfix.org> > > To > > Postfix users <postfix-users@postfix.org> > > cc > > Subject > > Re: SMTP Local Delivery Delay per each Message Queue > > [EMAIL PROTECTED]: > > For example, if an user send a mail to 70 ncrpt (number of recipient) > > at a time, Postfix will handle it as two seperate message and queued > > at qmgr by default. The first queue is ncrpt = 50 and the second is > > ncrpt = 20. It is because by default, default_destination_recipient_limit > > = 50. But this two message queue > > will deliver most at the same second, I would like to just slightly > > delay the second message id delivery 1 second later than the first > > one. > > Because I have some performance issue on the recipient authentication > > when the ncrpt of the original message is large (i.e. 200), if such > > delay can be made, it can free up the load to the authenication server > > and then I assume can relax the performance heavy duty a little. > > Thank you very much! > > With Postfix 2.5 and later: > > /etc/postfix/main.cf: > smtp_destination_rate_delay = 1 > > See: > > http://www.postfix.org/postconf.5.html#transport_destination_rate_delay > > Wietse