El 2013-09-18 10:10:33, Bowie Bailey escribió:
> The first server generates this (from the queue):
> 
> 7.3K             0000000000218330.52396538.000004C4          Sep 18 04:32
> mailuser         #@[]
>                   mu...@munge.buc.com
> 
> (note the return address of "#@[]")
> 
> And then I see messages like this when it is sent to the second server:
> 
> Sep 18 10:05:22 server2 courieresmtpd: 
> error,relay=::ffff:xxx.xxx.xxx.xxx,from=<#@[]>: 517 Syntax error.
> 
> What is going on here?

The mail in the queue is a double bounce. (The mail that bounced is
already a bounce mail.) Courier uses the pseudo sender address of #@[]
for such mails.

You cannot forward such mails to another server. In short, you cannot
forward the main postmaster account of a courier mail server to an account
on another mail server.


Regards,
Matthias

-- 
Matthias Wimmer
Contact details:     http://matthias.wimmer.tel/

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