[Assp-test] Unrecognized command

[Colin W. <co...@la...>]

Hi there,

 

I have started seeing a lot of unrecognized commands being passed through to
the MTA (Exim) by ASSP.

 

The unrecognized command seems to be a part of the actual message and can be
plain text or encoded emails.

 

As a guide, I have 67 unrecognised commands in the MTA logs for today so
far. Yesterday had 59, the day before 72. Prior to that I had 3 and the only
thing that showed up in the logs as being unrecognized was "Accept: */*" 

 

I can see a couple after upgrading to 13213 from 13210 and loads after
upgrading to 13217.

 

I didn't think too much of it at first but I am now informed that these
errors cause a 500 error and thus bounce the message.

 

Connections affect incoming and outgoing mail across a variety of source
platforms (Various versions of Exchange).

 

All the best,

Colin Waring.