On Tue, Mar 24, 2009 at 09:31:03AM +0530, Ashwin Muni wrote:
> I have a query i want postfix not to try sending mails to a destination
> which is dead. Does postfix maintains cache or is there any settings to be
> done for it. Tried googleing found this two directives. But dont exactly
> know it really works .
>
> minimal_backoff_time = 86400
Insane, restore this to the default setting.
> maximal_backoff_time = 86400
Too high, anythind over an hour or two does not help much.
Postfix automatically defers mail to dead destinations. It will allow
a retry of a few messages no sooner than $minimal_backoff_time, but this
does no harm.
> Ex: I'm sending a mail to xyz.com and my server could not connect to the
> xyz.com smtp server. My mail gets deffered and then it tries as per my
> setting but later another user of mine tries to send mail to the same domain
> and it happens again. I dont want postfix to try instead it can check the
> cache for the domain and not try delivering it.
You are chasing phantom problems. The default settings are fine, and what
you are proposing is extremely fragile.
--
Viktor.
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