Re: [exim] ignore manualroute if 421 response is received?

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Author: Phil Pennock
To: Oliver Howe
CC: exim-users
Subject: Re: [exim] ignore manualroute if 421 response is received?
On 2012-04-03 at 10:47 +0100, Oliver Howe wrote:
> Is it possible to tell a router to fail or pass on the message to the
> next router if it receives a 421 error from a host it is trying to
> deliver to?
> Specifically I have a router that delivers to Postini (Google's email
> signature/archiving solution - see
> for one of my outbound
> domains.
> But the Postini server often returns a "421 Server busy - try again
> later" error message and then all outbound messages for that domain
> get delayed whilst the retry time for the orginal message is
> calculated.

Retry rules, Section 32 of The Exim Specification.

Host errors result in two lookups, once for remote host, once for email
address's domain. Constrain by error type.

*@*     rcpt_421     F,1h,10m; G,16h,1h,1.5; F,4d,6h
*                 *            <default rules>