[rt-users] strange postmaster messages

[Joseph Spenner]

I sometimes see messages as follows:

Mail Delivery Subsystem wrote:
> 
> The original message was received at Tue, 22 Jul
2003 19:04:22 +0300
> from rtbox.mydomain.com [10.26.10.26]
> 
>    ----- The following addresses had permanent fatal
errors -----
> <user.name at domain.com>
>     (reason: 553 5.1.8
<apache at rtbox.mydomain.com>... Domain of sender
address apache at rtbox.mydomain.com does not exist)
> 
>    ----- Transcript of session follows -----
> ... while talking to lte2.domain.com.:
> >>> MAIL From:<apache at rtbox.mydomain.com> SIZE=3108
> <<< 553 5.1.8 <apache at rtbox.mydomain.com>... Domain
of sender address apache at rtbox.mydomain.com does not
exist
> 501 5.6.0 Data format error

My RT seems to work fine, and mail flows correctly
from outside to inside, and inside to outside, but the
above type messages I don't understand.  I'm not sure
if the recipients are receiving the messages during
the above issue.

Any ideas?


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