[exim] How reject HELLO with my IP

Hi!

Some spam hosts send MY IP address (xxx.xxx.xxx.xxx) in HELLO. See
following line:

2006-03-07 16:00:57 H=(xxx.xxx.xxx.xxx) [61.109.9.90]
F=<info@???> rejected RCPT <user@???>: Unknown user

How can I check HELLO and reject these hosts?

--
With best wishes
Victor Vislobokov