On Tue, Jun 18, 2002 at 10:26:38PM +0200, [EMAIL PROTECTED] wrote: > Hello! > > I can't receive any mails. After tracking this problem > for a whlie I tried to telnet to the server on the smtp port. > I got as far as entering the "MAIL FROM" line, then I had to wait fo 15 > about minutes, and then got "417 DNS lookup failure: mail.com. Try again > later.". Now, my server is behind a NAT router, so I suspect the problem is > there... So is it possible to disable this DNS check or make some other > configuration adjustments? I already have > TCPDOPTS="-stderrlogger=/usr/courier/sbin/logger -nodnslookup > -noidentlookup"
The "-nodnslookup" is a couriertcpd option, which stops it doing a reverse DNS lookup on the remote IP address. The DNS lookup at the MAIL FROM stage in done by the esmtpd daemon, and you turn that off by setting the BOFHCHECKDNS variable to 0 in the /etc/courier/esmtpd config file. > in my esmtpd... > > Please help! > > Here is the log: > 220 <my server name> ESMTP > ehlo x.x.x > 250-<my server name> Ok. > 250-XVERP=Courier > 250-XEXDATA > 250-XSECURITY=NONE,STARTTLS > 250-PIPELINING > 250-8BITMIME > 250-SIZE > 250 DSN > MAIL FROM:<[EMAIL PROTECTED]> > 417 DNS lookup failure: mail.com. Try again later. -- Anand Buddhdev http://anand.org ---------------------------------------------------------------------------- Bringing you mounds of caffeinated joy >>> http://thinkgeek.com/sf <<< _______________________________________________ courier-users mailing list [EMAIL PROTECTED] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
