Illegal address syntax ... in MAIL command: <-foo>

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Illegal address syntax ... in MAIL command: <...
\ pandora (13 Mar 2008)
. \ Ralf Hildebrandt (13 Mar 2008)

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Subject:	Illegal address syntax ... in MAIL command: <-foo>
Group:	Postfix-users
From:	pandora
Date:	13 Mar 2008

Hi,

I'm using Postfix 2.5.1 and just noticed lots of warnings in the logs
like: Illegal address syntax ... in MAIL command: <-foo>

I verified that the warning is indeed triggered by the leading '-' in the
address. Now while I'm not keen to receive spam (which I'm sure this is),
I'm still wondering about the warning. The hyphen/minus is an allowed
character in the local-part of the address, and thus I would expect
that Postfix accepts the address. Can anyone shed light on this?

regards

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