Cyrus users who also use Exim may be interested to know that the latest release of
Exim (4.41) has a facility for rejecting messages which have NUL characters in the
body. This means such messages can be rejected before Exim tries to pass them to
cyrus. In my case this cuts down on quite a lot of dross in the exim queue, since
most such messages are spam.
Exim-4.41 has a variable ($body_zerocount) which can be used in a DATA acl:
data_acl:
deny message = Message contains a NUL character
condition = ${if >{$body_zero_count}{0} {yes}{no}}
accept
Phil.
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Phil Chambers ([EMAIL PROTECTED])
University of Exeter
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