[Exim] Exim 3.34+MySQL host_accept_relay

Hello,

The following line present in config :
host_accept_relay = 10.10.10.0/24 : mysql;select ip from relay_ip where
ip='$key'

but the query doesn't give the correct result actually, so that if I insert
into relay_ip any ip,
for example '192.168.1.1', and run exim -bh 192.168.1.1, it says
">>> host in host_accept_relay? no".

Any suggestions ?

Regards,
Alex