Re: [Exim] compuserve and callbacks

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Auteur: Nigel Metheringham
Datum:  
Aan: Adam Henry
CC: exim-users
Onderwerp: Re: [Exim] compuserve and callbacks
On Mon, 2002-07-01 at 01:16, Adam Henry wrote:
> It would seem that Compuserve doesn't generate 550 errors on unknown
> recipients--it waits and sends a message back to the sender that the
> user doesn't exist. This makes callback useless.
>
> Is this a popular way for a MTA to act? It would seem to generate
> more bandwidth, but perhaps be a little easier on system load...


Its not unusual at all. For example think of a relay MTA on a corporate
firewall - no access to information on internal accounts/aliases, so it
just passes stuff on and will generate errors for the messages that
could not be relayed after the session.

    Nigel.
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[ Nigel Metheringham           Nigel.Metheringham@??? ]
[ - Comments in this message are my own and not ITO opinion/policy - ]