> It takes 30sec to get SMTP prompt if reverse DNS resolution for the > Connecting client IP address returns SERVFAIL error. Can I make exim
> ignore this error and produce SMTP prompt without delay for one
> client..
You may have "host_lookup" set to * which would make it do DNS lookups for
every host that connects. I don't know if it does reverse DNS, but this may
likely be the issue. If not, check your connection ACLs to see if anything
is being done that with DNS.
