[exim] [Recurring errors]

Hello



I'm facing since today more and more of these messages :



15:19:52 H=mailhost [xxx.xxx.xxx.xxx] F=<user@???> temporarily
rejected RCPT <user@???>: failed to expand ACL string
"${run{/usr/bin/spfquery.mail-spf-perl --ip \"$sender_host_address\"
--identity ${if def:sender_address_domain {--scope mfrom --identity
\"$sender_address\"}{--scope helo --identity
\"$sender_helo_name\"}}}{no}{${if eq {$runrc}{1}{yes}{no}}}}": command timed
out



Load is often near 0 on this server, and on 30 days history and 600 000
mails handled, I had before today only 150 occurences of this error, against
482 just for today on only 24777 mails treated.



Does any one have an idea on this, I googled a lot, but do not seem to read
anything on this problem.


@tdldp