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- Maybe in reply to: Pavel Urban: "4xx on HELO"
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From: Victor Duchovni (no email)
Date: Thu Sep 01 2005 - 10:58:44 EDT
On Thu, Sep 01, 2005 at 09:37:36AM +0200, Pavel Urban wrote:
> how does Postfix react when
>
> - there are many e-mails destined to one domain
> - when the first delivery attempt is made, remote server responds with
> 4xx on HELO
If there are no backup MX hosts, the first message is deferred, and the
destination is decremented by one from $initial_destination_concurrency
(default 5). If "$initial_destination_concurrency" messages in a row
all fail, the destination is throttled for $minimal_backoff_time.
If there are backup MX hosts, they are tried.
> ? Is this behaviour configurable?
>
You can raise the initial_destination_concurrency limit (but it cannot be
raised past the per-transport or default destination concurrency limit).
See QSHAPE_README.
-- Viktor. Disclaimer: off-list followups get on-list replies or get ignored. Please do not ignore the "Reply-To" header. To unsubscribe from the postfix-users list, visit http://www.postfix.org/lists.html or click the link below: <mailto:?body=unsubscribe%20postfix-users> If my response solves your problem, the best way to thank me is to not send an "it worked, thanks" follow-up. If you must respond, please put "It worked, thanks" in the "Subject" so I can delete these quickly.
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