sendmail queuing required for reducing load on other mailers

[Mike_Ca Li]

I'm using Eric Allman's sendmail 8.7
Want to know to configure and run the sendmail daemon so that sendmail will run only if there is a certain amount (eg 5) of email messages in queue so that . Is it something like:

sendmail -bd -oc

Thanks
Mike

[Steven E. Protter]

Side note: Your sendmail version is somewhat out of date, exposing you to several years worth of security flaws.

Monitoring the thread, interested in the answer.

SEP

[Andrew Cowan]

I've never heard of a trigger using the number of messages, but the standard way is not to run the sendmail daemon full-time, but to trigger it on a regular basis from a cron script. E.g. every 30 minutes.

[Balaji N]

hi,
i am not sure if there is a simple approach.
but here is a work around.
1. configure sendmail to queue messages and also set the HoldExpensive Flag on. This will cause messages to be queued.
2. Setup a cron job, to find the no of messages in queue and if it is greater than 5,send all messages with sendmail -q.

hth
-balaji