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Full Discussion: sendmail connection timeout
Special Forums UNIX and Linux Applications sendmail connection timeout Post 302478994 by rbatte1 on Thursday 9th of December 2010 10:39:28 AM
Old 12-09-2010
You seem to be trying to route this through the local host, 127.0.0.1 and so you may need to adjust the sendmail.cf file, usually found under /etc somewhere (use find /etc -name sendmail.cf)

Within this file, find and uncomment the DS statement. It sould have the format:
Code:
#
#
DSmymail.router.company
#
#

This would need to be your local mail server and that would need to have whatever routing rules to allow you to send through it. Often these are open, but many companies shut them down to avoid sending vast amounts of spam if a desktop is compromised by a virus.

Best to use a DNS name that resolves the IP address. You may need to stop/start the sendmail service to activate the update.


You also need to check that there are no blocks on your path the the mail server. Try a
Code:
telnet mymail.router.company 25

You should get output like:
Quote:
Trying...
Connected to mymail.router.company.
Escape character is '^]'.
220-SMTP Relay
220 Warning: no name found in DNS for your host address
quit
221 mymail.router.company closing
Connection closed.

If you don't then a long delay suggests wrong IP address, firewall block or wrong routing information in the network. A fast rejection may suggest that this is not the mail server.



I hope that this helps.



Robin
liverpool/Blackburn
UK
Last edited by rbatte1; 12-09-2010 at 11:46 AM.. Reason: Spelling
 

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LEARN ABOUT FREEBSD

mailer.conf

MAILER.CONF(5)						      BSD File Formats Manual						    MAILER.CONF(5)

NAME

     mailer.conf -- configuration file for mailwrapper(8)

DESCRIPTION

     The file /etc/mail/mailer.conf contains a series of lines of the form

     name program [arguments ...]

     The first word of each line is the name of a program invoking mailwrapper(8).  (For example, on a typical system /usr/sbin/sendmail would be
     a symbolic link to mailwrapper(8), as would newaliases(1) and mailq(1).  Thus, name might be ``sendmail'' or ``newaliases'' etc.)

     The second word of each line is the name of the program to actually execute when the first name is invoked.

     The further arguments, if any, are passed to the program, followed by the arguments mailwrapper(8) was called with.

     The file may also contain comment lines, denoted by a '#' mark in the first column of any line.

FILES

     /etc/mail/mailer.conf

EXAMPLES

     This example shows how to set up mailer.conf to invoke the traditional sendmail(8) program:

	   # Execute the "real" sendmail program located in
	   # /usr/libexec/sendmail/sendmail
	   sendmail	   /usr/libexec/sendmail/sendmail
	   send-mail	   /usr/libexec/sendmail/sendmail
	   mailq	   /usr/libexec/sendmail/sendmail
	   newaliases	   /usr/libexec/sendmail/sendmail

     This example shows how to invoke a sendmail-workalike like Postfix in place of sendmail(8):

	   # Emulate sendmail using postfix
	   sendmail	   /usr/local/sbin/sendmail
	   send-mail	   /usr/local/sbin/sendmail
	   mailq	   /usr/local/sbin/sendmail
	   newaliases	   /usr/local/sbin/sendmail

     This example shows how to invoke a sendmail-workalike with Exim (from ports) in place of sendmail(8):

	   # Emulate sendmail using exim
	   sendmail	   /usr/local/sbin/exim
	   send-mail	   /usr/local/sbin/exim
	   mailq	   /usr/local/sbin/exim -bp
	   newaliases	   /usr/bin/true
	   rmail	   /usr/local/sbin/exim -i -oee

     This example shows the use of the mini_sendmail package from ports in place of sendmail(8).  Note the use of additional arguments.

	   # Send outgoing mail to a smart relay using mini_sendmail
	   sendmail	   /usr/local/bin/mini_sendmail -srelayhost
	   send-mail	   /usr/local/bin/mini_sendmail -srelayhost

SEE ALSO

     mail(1), mailq(1), newaliases(1), mailwrapper(8), sendmail(8)

     postfix(1) (ports/mail/postfix), mini_sendmail(8) (ports/mail/mini_sendmail)

HISTORY

     mailer.conf appeared in NetBSD 1.4.

AUTHORS

     Perry E. Metzger <perry@piermont.com>

BUGS

     The entire reason this program exists is a crock.	Instead, a command for how to submit mail should be standardized, and all the "behave dif-
     ferently if invoked with a different name" behavior of things like mailq(1) should go away.

BSD
								  October 8, 2010							       BSD
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