[exim] Round-robin dnslists?

Hello,

Anyone know if it is possible to configure the 'dnslists' condition in a
round-robin order? I want to check to see if a sending host is listed on
one of two RBL's, but don't necessarily want all the checks to go to the
first listed RBL:

       dnslists = rbl-a : rbl-b

I would rather it alternated between the two, rather than testing
'rbl-a' all the time. Similar to the 'hosts_randomize' transport
statement.



Thanks,

John.

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John Horne, University of Plymouth, UK
Tel: +44 (0)1752 587287    Fax: +44 (0)1752 587001