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sendmail auth/ident checking issue

 
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Old 08-20-2009
sendmail auth/ident checking issue
Hi All,

I have a problem sending mail to a host which seems to have sendmail configured to use Ident port (113) to check back on the mail sender.

My problem is that this port is not enabled on the firewalls between sender and receiver so the ident checking and hence the mail is failing and I need to turn this checking off.

I modified sendmail.cf to include an ident timeout "O Timeout.ident=0s" which I believe is supposed to eliminate this checking yet firewall logs indicate it is still happening.

I can telnet the server on port 25 and have dialogue with the mail server and even supposedly leave a mail though when I try to check it on the host it says there is none.

Any advice on how to get the mail through - particularly any more sendmail.cf settings - would be greatly appreciated.

cheers,
jublio
 
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LEARN ABOUT OSF1

mconnect

mconnect(1)							   User Commands						       mconnect(1)

NAME

       mconnect - connect to SMTP mail server socket

SYNOPSIS

       mconnect [-p port] [-r] [hostname]

DESCRIPTION

       The  mconnect utility opens a connection to the mail server on a given host, so that it can be tested independently of all other mail soft-
       ware. If no host is given, the connection is made to the local host. Servers expect to speak the Simple Mail Transfer  Protocol	(SMTP)	on
       this connection. Exit by typing the quit command. Typing EOF sends an end of file to the server. An interrupt closes the connection immedi-
       ately and exits.

OPTIONS

       The following options are supported:

       -p port	       Specify the port number instead of the default SMTP port (number 25) as the next argument.

       -r	       "Raw" mode: disable the default line buffering and input handling. This produces an effect similar to   telnet(1)  to  port
		       number 25.

OPERANDS

       The following operand is supported:

       hostname        The name of a given host.

USAGE

       The mconnect command is IPv6-enabled. See ip6(7P).

FILES

       /etc/mail/sendmail.hf	       help file for SMTP commands

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       telnet(1), sendmail(1M), attributes(5), ip6(7P)

       Postel,	Jonathan  B.,  RFC  821, Simple Mail Transfer Protocol,  Information Sciences Institute, University of Southern California, August
       1982.

SunOS 5.10							    9 Nov 1999							       mconnect(1)