I have this problem because reverse DNS is broken ( the DNS query
returns SERVFAIL ) for one of subnets and it takes 30sec for Exim to
timeout and generate SMTP prompt.
Is it possible configure EXIM don't do reverse DNS for some IP
addresses.
Thanks.
Mike.
-----Original Message-----
From: exim-users-bounces@??? [
mailto:exim-users-bounces@exim.org]
On Behalf Of Eli Sand
Sent: Wednesday, September 17, 2008 6:05 AM
To: exim-users@???
Subject: Re: [exim] SMTP prompt 30sec delay
> 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.
Eli.
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