At 01:56 PM 5/9/2002 -0400, Dennis De Marco wrote: >I'm looking for some advice on tunning up sendmail for delivery of >Listserv HPO version. I have the following lists, and the time for each >mailing: Use multiple queues, optimize queue entry counts (max SMTP recipients) depending on how many recipients share MX receivers (MAXBSMTP -- a smaller number of max recipients with a larger number of "worker" processes, if you have a beefier machine, will really help -- otherwise, increase MAXBSMTP until you see performance stop gaining), increase the number of SMTP forwarders to what you can handle (make sure you sort recipients SMTP_FORWARD_1="n*SMTP.FORWARDER.XXX.") If you have multiple systems running Sendmail, add multiple SMTP_FORWARD_X lines with as high an "n" value as you can afford for each. Also, always sort recipients (SORT_RECIPIENTS=1; export SORT_RECIPIENTS). Last -- upgrade to Sendmail 8.12.3 if you have not already. It's quite a bit faster than the older 8.11.x versions. All that said -- nothing will speed up the recipient' systems. If you have a lot of slow responders, either dump them off upstream or put them into a slower queue after they timeout. Use the included movemail.pl and re-mqueue.pl scripts to go through and move mail that gets to a certain age to another queue so it does not slow down the fast movers. Adjust your timeouts so that Sendmail does not patiently sit around for hours waiting on half-dead MX receivers. Something like creating queues A B C D E F, then Queue A gets all new mail Queue B gets any mail in queue A that's more than 20 minutes old Queue C gets any mail in queue B that's more than 60 minutes old Queue D gets any mail in queue C that's more than 120 minutes old Queue E gets any mail in queue D that's more than 240 minutes old Queue F gets any mail in queue E that's more than 1 day old -- DCP -- Douglas Palmer | Voice: 718-260-2291 Fax: 718-260-2338 SystemsManager, USDC-EDNY | Notes: /NYED/02/USCOURTS 225 Cadman Plaza East | Email: [log in to unmask] Brooklyn, New York 11201 | CCNP