Im Auftrag von De Petter Mattheas > > > We just did a stress test on the posfix server we installed in are test lab= , > specs: 4 virtual cpu and 4GB ram on a vmware esx environment. > > Test os ubuntu 18.04.2 fully patched > > Kernel 4.15.0.46 > > Postfix version is the one from ubuntu repo 3.3 > > > We see when we send 45000 mails form are exchange server to the relay > smtp = > > (postfix) that postfix loses about 14000 mails.
Sorry Postfix never loss mails (only if Hardware give up) On Virtual server with 4 Cores ,4 GB Ram, amavis and a lot of other milters With raid 5 / raid 10 and true Raidcontroller we never loss any mail over 50000 mails by stresstest in ten minutes With this we had the network killed but not the Postfixes :-) We make the test between Postfix server as Test of a new Milter Take a look at your LOG Whatever you find I dont think you find it in Postfix :-) Look at reject's to your exchange that exchange cannot handle it Mit freundlichen Grüßen Uwe Drießen -- Software & Computer Netzwerke, Server. Wir vernetzen Sie und Ihre Rechner ! Uwe Drießen Lembergstraße 33 67824 Feilbingert Tel.: 06708660045