[courier-users] Re: patch for submit2.C

[Sam V. <mr...@co...>]

Alexander Lazic writes:

> hi, 
> 
> i have change the submit2.C to make easy switch for the RFC 2045
> MIME-Header Problem. 
> 
> I have test it here and can't find any failures, please can anyone also
> test it.

Yes, this approach fails in several situations: 

* Mail gets forwarded from .courier.  Mail forwarded from .courier gets 
reinjected into the queue via submit.  This will fail, because submit will 
reject it, since the magic variable is only initialized in courieresmtpd 

* Now, the server is going to try to generate a bounce.  The bounce gets 
generated, and courierdsn attempts to inject the bounce into the queue via 
submit.  The bounce contains a copy of the original message, as a MIME 
attachment.  Which is now invalid.  The bounce bounces, and disappears into 
never-never land. 

The latter part also happens if the mail gets relayed through the server, 
and the remote relay rejects the mail for some reason. 


-- 
Sam