On Wed, 1 Nov 2006, Ian P. Christian wrote:
> I understand I might be able to set the 'temp_errors' option to defer
> the sender with a 'try again later' response rather then a perminent
> error, but ideally I should be able to get exim to handle a 'pipe'
> failure in the same way it handles a 'smtp' error, and just put it in
> the queue for later processing.
It does, _except_ that it cannot know without your help which errors are
temporary and which are permanent. With SMTP, it's all defined in the RFC:
4xx errors are temporary and 5xx errors are permanent, and it treats
errors like connection failure as temporary. For a pipe, it has no
knowledge of what you are doing. The default is to assume a couple of
standard error codes are temporary and the rest are permanent. As an OP
says, if you put
temp_errors = *
it will treat all errors as temporary.
--
Philip Hazel University of Cambridge Computing Service
Get the Exim 4 book: http://www.uit.co.uk/exim-book
