Re: [Exim] Retry timeout option of "defer"

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Autor: Philip Hazel
Datum:  
To: Dean Brooks
CC: exim-users
Betreff: Re: [Exim] Retry timeout option of "defer"
On Tue, 31 Aug 2004, Dean Brooks wrote:

> > (146) 15-May-2000 M Allow SMTP error codes in retry rules
> > This would allow special handling of certain errors from certain hosts. In
> > particular, it would allow failing of certain 4xx codes.
> >
> > Quite a geriatric Wish List item, in fact. I'll see if I can find time
> > to think about this one, as it is clearly still relevant. (But not for
> > the next release, which is mainly maintenance.)
>
> On second thought, I'm not so sure this wish item is really needed.
>
> If I set retry error rules for "timeout", "refused" and
> "auth_failed", and then specify a default timeout, wouldn't the
> default timeout ONLY apply to deferrals?


I think people have cases where they want to deal with very specific 4xx
codes that some hosts give.

> Are there any other error conditions that would queue a remote message
> that wouldnt be a result of a connection timeout, connection refusal
> or a denied authentication?


Not sure offhand (crash of the transport is one exceptional case that
does come to mind), but people do prefer positive statements rather than
statements by exception, I suspect.

-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book:    http://www.uit.co.uk/exim-book