As far as Sendmail optimizations go, I've found the following optimizations are sufficient for most folks (even my larger clients):
http://www.trilug.org/~jonc/mailserver/PartIII.html The following are noteworthy settings inside the sendmail.cf file that you may wish to change at one time or another: O MaxMessageSize=1000000 - this is the maximum message size in bytes; by default there is no limit. O LogLevel=9 - this controls the amount of information that goes into the log files. O Timeout.iconnect=5m - Used to weed out slow hosts. Definitely change this. I recommend trying 5 seconds (O Timeout.iconnect=5s). This value is the timeout for the initial connection. If it fails the initial connection then it moves that host to the rear of the queue and when its turn comes again in the queue it will use the more generic "Timeout.connect" value. O Timeout.helo=5m - The time the server will wait for the HELO command to complete (initial connection). The RFC's call for 5 minutes, but in my opinion that is too long. Still, to be conservative I wouldn't make it smaller than 2 minutes. O Timeout.mail=10m - Timeout for the response to the MAIL command. The RFC specifies a minimum of 5 minutes. I would use the minimum, though some folks set this as low as 2 minutes. O Timeout.datainit=5m - Timeout for the response to the DATA command. The RFC specifies a minimum of 2 minutes. I would use the minimum. O Timeout.ident=0 - You really want to check this and make *sure* that it is zero, otherwise sendmail wastes that many seconds attempting to use ident. O DefaultUser=8:12 - the UserID:GroupID that Sendmail runs as O QueueLA=8 - load average at which Sendmail simply queues up new messages, this is a good tweaking parameter O RefuseLA=12 - load average at which Sendmail starts to reject connections, this is needs to be modified if you modify QueueLA #0 MaxDaemonChildren=0 - maximum number of child processes allowed at one time. O DeadLetterDrop=/var/tmp/dead.letter - where to save bounces if all else fails (and this does happen if the system runs out of space on the /var volume, so you might want to point this to another volume. #O MaxRecipientsPerMessage=100 - the maximum number of recipients in a message. HtH - Jon Carnes ------------------------------------------------------ Mailman-Users mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ This message was sent to: [EMAIL PROTECTED] Unsubscribe or change your options at http://mail.python.org/mailman/options/mailman-users/archive%40jab.org