Re: 1 minute pause on sendmail login

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Andy Pieters wrote:
Hi

Sendmail will do a reverse DNS lookup for the IP address of the
connection to put the name in the logs.  Apparently this
doesn't work for the address you are testing from and you
wait for a timeout.  Perhaps the delegated DNS server is
blocked by a firewall that drops the packets.  Likewise there
is an IDENT query for the owner of the socket, but those
timeouts are usually faster.



It seems to happen with *everyone* who tries to connect outside of the LAN.

Not from here it doesn't:

$ date; telnet mail.vlaamse-kern.com 25; date
Thu Dec 22 11:34:47 GMT 2005
Trying 86.53.38.156...
Connected to mail.vlaamse-kern.com.
Escape character is '^]'.
220 giga.vlaamse-kern.com ESMTP Sendmail 8.13.1/8.13.1; Thu, 22 Dec 2005 12:34:47 +0100
QUIT
221 2.0.0 giga.vlaamse-kern.com closing connection
Connection closed by foreign host.
Thu Dec 22 11:34:49 GMT 2005

I have working reverse DNS though.

Paul.


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