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Subject: Remote Performance
From: El Bunzo (el_bunzowebpower.nl)
Date: Thu Aug 31 2000 - 17:20:40 CDT

Hi,

I want to send peronalized to a lot of addresses (+/- 50.0000).
I did some testing to my own email-address and I can send aproximately
1000 emails per *MINUTE*, which is very satisfying.

But when I send message to those 50.0000 addresses the performance
is really bad, 3000 per *HOUR* (50 per minute).

How can I increase this value?

I think the problem is that there are a lot of addresses which:

         - Don't exist;
         - Have a very slow mailserver;
         - Have no legal domain-name;
         - etc.

How can I configure PostFix to handle those problems quicker?

Some details from main.cf:

local_destination_concurrency_limit = 5
default_destination_concurrency_limit = 5
qmgr_fudge_factor = 40
qmgr_message_active_limit = 10000
qmgr_message_recipient_limit = 10000
qmgr_site_hog_factor = 10
hash_queue_depth = 1
hash_queue_names = defer,active
queue_run_delay = 14400
minimal_backoff_time = 14400
maximal_backoff_time = 21600

Master.cf:

# ==========================================================================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (yes) (never) (50)
# ==========================================================================
smtp inet n - n - - smtpd
pickup fifo n n n 60 1 pickup
cleanup unix - - n - 0 cleanup
qmgr fifo n - n 300 1 qmgr
rewrite unix - - n - - trivial-rewrite
bounce unix - - n - 0 bounce
defer unix - - n - 0 bounce
smtp unix - - n - 500 smtp
showq unix n - n - - showq
error unix - - n - - error
local unix - n n - - local
cyrus unix - n n - - pipe
     flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
uucp unix - n n - - pipe
     flags=F user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail
($recipient)
ifmail unix - n n - - pipe
     flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
     flags=F. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop
$recipient