[Mailman-Users] Tuning Questions

[Hunter Hillegas]

We are running MM 2.1.1 on RH7.2.

We have an announce list with 27,000 members. Delivery to the list takes
FOREVER.

I am looking for some tuning tips.

For one, the default config is using SMTPDirect, not sendmail:

#DELIVERY_MODULE = 'Sendmail'
DELIVERY_MODULE = 'SMTPDirect'
MTA = 'Manual'
SMTP_MAX_RCPTS = 500
SMTP_MAX_SESSIONS_PER_CONNECTION = 0
MAX_DELIVERY_THREADS = 0

Would sendmail be faster?

Should I setup a caching nameserver on the machine to speed lookups?

How do I ensure that messages are being sent efficiently (i.e. AOL.com
recipients are sent in least number of transactions, etc...).

Any help is appreciated!

Hunter