Hello all...

My question is
1] i am able to send mails to localhost or any user of localhost..through any user...
2] able to send mails to extrnal domains like gmail yahoo rediff etc..

I am unable to send mail in internal domain..

detail..Main mail server is exchange
i configured 1 sendmail and another machine for nagios
this both machine are not sending mails to me or on my domain mail id..

PLZ help

Hello...

Exchange is working very properly.

please help.

Are you using Exchange server or what ?

Exchange server is part of Windows Server setup.

Anyway, how do you know that it's working properly?

How you are sending mails ?

my companies main mail server is exchange..i am handling linux servers..i dont know how to check exchange bt it is there from last 5 years..and all employees send n receive mails from internal and external domains through dat exchange server. so we can say its working properly.

my problem is :-- my three (two centos n one fedora )linux severs configured with sendmail are able to send n receive mails only from external domains like gmail yahoo rediff etc.

bt i am not able to send or receive mails from my companies mail server...my internal domain..my and co employees email client (outlook)..

Hello....after a long rnd i m not able to resolve...please help me...

Generally having both sendmail & exchange server causes problem...
Most of the problem are related to MX record of your company DNS(if you are using one).
Generally only one (primary MX record) mail server are designated as main mail handler and work on a domain...

Check out these links .....

http://www.gaztronics.net/howto/send...o_exchange.php
http://bloggerdigest.blogspot.com/20...on-redhat.html

http://linuxgazette.net/issue38/tag/5.html

Otherwise write a daemon in linux server which will fetch mails using fetchmail from MSExchange directly and forward it to sendmail mailbox.

http://www.togaware.com/linux/surviv...l_Collect.html
http://fetchmail.berlios.de/fetchmail-FAQ.html#S2

or update MX record in companys DNS....
http://forums.msexchange.org/m_18004...htm#1800421017

Thanx a lot..