[Mailman-Users] Mailman being -very- slow
jonc at nc.rr.com
Sun May 25 19:27:54 CEST 2003
On Fri, 2003-05-23 at 23:56, Dan Wright US2002021042 wrote:
> Can anyone help?
You may simply need more RAM, but try this first - a message from the
This is the one big problem with running a non-optimized MTA and is the
reason I (and so many others) moved over to Postfix.
Try setting SMTP_MAX_RCPTS = 5 in the ~mailman/Mailman/mm_cfg.py file
# Ceiling on the number of recipients that
# can be specified in a single SMTP
# transaction. Set to 0 to submit the
# entire recipient list in one
# transaction. Only used with the SMTPDirect
# SMTP_MAX_RCPTS = 500
SMTP_MAX_RCPTS = 5
I have advocated this setting for Sendmail folks for a long time now.
Let us know if it works for you!
BTW, there is a timing section in your Sendmail.cf file. You can adjust
the various time-outs used by Sendmail in this section (be sure to
backup your sendmail.cf file first!). Before I moved my systems over to
Postfix, I used to tweak these settings to get the maximum performance
out of Sendmail.
Here are some settings that might be of interest to you:
# It waits 5 minutes for the initial connect!!!
# Definitely change this. Try something like 5 seconds
# If it fails the initial connect it moves the host to
# the end of queue, then users the more generic
# "Timeout.connect" value.
# It waits 5 minutes before giving up on a "helo"!!!
# Even if the host is doing a DNS/RBL look up on you,
# it shouldn't take 5 minutes (though the RFC calls
# for 5 minutes here)
# It waits 10 minutes before giving up on passing off a email!!!
# The RFC minimum is 5 minutes for this. I think even that is
# too long
Remember to stop and restart Sendmail if you make a change to
/etc/sendmail.cf (or /etc/mail/sendmail.cf).
Here is a web-page with more info on the Sendmail.cf file:
I wrote this for a class I teach on setting up Mail-services for
corporate or personal use.
HtH - Jon Carnes
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