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Operating Systems AIX Configure sendmail to use exchange server Post 302482324 by rbatte1 on Tuesday 21st of December 2010 08:36:46 AM
Old 12-21-2010
So, you have multiple addresses, so could this be a DNS issue that you are not guarenteed to get the right server?

Could this be a firewall issue? Try to open the connection:-
Code:
telnet www.xxx.yyy.zzz 25

for each IP address that the DNS returns. Port 25 is the smtp port. You should get output similar to the following:-
Code:
# telnet www.xxx.yyy.zzz 25
Trying...
Connected to mail.mycomp.com.
Escape character is '^]'.
220 mail.mycomp.com Microsoft ESMTP MAIL Service, Version: 6.0.3790.1830 ready at  Tue, 21 Dec 2010 13:30:58 +0000 
quit
221 2.0.0 mail.mycomp.com Service closing transmission channel
Connection closed.

If not, you could have a firewall issue, or perhaps even be going to the wrong place entirely. If you can ping the address, then a firewall issue would simply seem to hang (timeout in about 30 seconds usually) If you can't ping, then it's DNS or routing I expect.



Do let us know how you get on.





Robin
Liverpool/Blackburn
UK
 

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BB-SERVICES(5)							File Formats Manual						    BB-SERVICES(5)

NAME
bb-services - Configuration of TCP network services SYNOPSIS
$BBHOME/etc/bb-services DESCRIPTION
bb-services contains definitions of how bbtest-net(1) should test a TCP-based network service (i.e. all common network services except HTTP and DNS). For each service, a simple dialogue can be defined to check that the service is functioning normally, and optional flags deter- mine if the service has e.g. a banner or requires SSL- or telnet-style handshaking to be tested. FILE FORMAT
bb-services is a text file. A simple service definition for the SMTP service would be this: [smtp] send "mail quit " expect "220" options banner This defines a service called "smtp". When the connection is first established, bbtest-net will send the string "mail quit " to the service. It will then expect a response beginning with "220". Any data returned by the service (a so-called "banner") will be recorded and included in the status message. The full set of commands available for the bb-services file are: [NAME] Define the name of the TCP service, which will also be the column-name in the resulting display on the test status. If multiple tests share a common definition (e.g. ssh, ssh1 and ssh2 are tested identically), you may list these in a single "[ssh|ssh1|ssh2]" definition, separating each service-name with a pipe-sign. send STRING expect STRING Defines the strings to send to the service after a connection is established, and the response that is expected. Either of these may be omitted, in which case bbtest-net(1) will simply not send any data, or match a response against anything. The send- and expect-strings use standard escaping for non-printable characters. " " represents a carriage-return (ASCII 13), " " represents a line-feed (ASCII 10), " " represents a TAB (ASCII 8). Binary data is input as "xNN" with NN being the hexadecimal value of the byte. port NUMBER Define the default TCP port-number for this service. If no portnumber is defined, bbtest-net(1) will attempt to lookup the portnum- ber in the standard /etc/services file. options option1[,option2][,option3] Defines test options. The possible options are banner - include received data in the status message ssl - service uses SSL so perform an SSL handshake telnet - service is telnet, so exchange telnet options FILES
$BBHOME/etc/bb-services SEE ALSO
bbtest-net(1) Xymon Version 4.2.3: 4 Feb 2009 BB-SERVICES(5)
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