Anant Athavale:
> Dear List,
>
> I have a basic question. Which is parameter I need to use to change
> in order to change the mailq refresh time.
>
> I have the following problem.
>
> Many of my users have their quota filled up and we have set maximum
> queue lifetime to default 5d. When postfix refreshes its mailq
> (equivalent of sendmail -q) all pending mails to due to overquota
> become active and due to this, access to mails through front end is
> becoming slow (Load on server).
>
> I don't want postfix to run sendmail -q equivalent on its own. I will
> run sendmail -q through crontab at specific intervals (if it is OK).
No, you must let Postfix work the queue. "sendmail -q" attempts
to deliver all mail at the same time which is bad for performance.
If you let Postfix work the queue it spreads out deliveries over time.
Wietse
