[EXIM] Case issues in sender_reject_recipients? (1.73)

I have

sender_reject_recipients = partial-dbm;/disk2/exim/tables/blocked-senders

but have found with a few addresses where there are mixed case local
parts, exim doesn't see a match,

e.g. Best-Biz@???

and the spam gets through. The manual implies that an exact match is done.

Here's what happens:

220 mailhub2.liv.ac.uk ESMTP Exim 1.73 #2 Thu, 11 Dec 1997 13:18:59 +0000
helo there
250 mailhub2.liv.ac.uk: Hello localhost [127.0.0.1]
mail from:<Best-Biz@???>
250 <Best-Biz@???> is syntactically correct
rcpt to:<qq11>
250 <qq11> is syntactically correct

now I've checked another example in my list of blocked senders and I
get a

550 rejected: administrative prohibition

as I would expect.

Thanks.

--
Alan Thew                                       alan.thew@???
Computing Services,University of Liverpool      Fax: +44 151 794-4442

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