On Sun, 04 Oct 2009, Laszlo Kupor wrote: > 2009. 10. 3, 12.39 Victor Duchovni wrote: > > On Sat, Oct 03, 2009 at 12:16:26PM +0200, Laszlo Kupor wrote: > > > > > This situation in Postfix environment different. > > > Postfix after accept mail query all domains (domain1,2,3) MX and sends > > > email in separate SMTP session per domain name also if same MX of all > > > domain. The example above sends 3 mail with 2,1,1 recipients in 3 SMTP > > > session, 3 mail on network,3 processes and resources. > > > I search documentation, and internet but not found solution to emulate > > > Sendmail behavior in Postfix. > > > > > > The question i can emulate this in Postfix? > > > > No. Postfix never sends recipients for different transport:nexthop > > combinations (the nexthop is typically the recipient domain) in the > > same envelope. > > > > There are good reasons for this, it is difficult to do this and still > > have a reasonable queue scheduling algorithm (Sendmail has no global > > scheduling at all, which is far worse than occasionally splitting > > envelopes). > > Thanks for your reply, Sendmail stay here. > I can't go with you in this situation. The administrators view: this is > big performance loss in some situation(maybe rare), and can occurs > duplicate mail delivery (i tested, for a day and overhead above 150% > here). I can't see clearly why good this, but i accept this is good. > Just not for me and not for now. If you have a written documentation > about queue mechanism please give me a reference.
You've already been linked to one document, but here it is again with one more. Please read carefully. http://www.postfix.org/CONNECTION_CACHE_README.html http://www.postfix.org/SCHEDULER_README.html -- Sahil Tandon <sa...@tandon.net>
