Config OES/sendmail to forward email from/to Exchange Server

Hi
I have installed an OES on a Red Hat ES 3.
But on my network i have a Exchange Server that send/receive all emails. And i cannot change here nothing(company rules). Now what i need to do? I need to config the Linux sendmail to relay on the Exchange Server(the exchange is now configured relay on Linux) to forward the emails that i need.
I only need this to one email account e.g [email protected] The Oracle Email Server is running, but i need to config the Linux to forward the email to the Exchange Server, and go to outside. Also i need that receiving an email to [email protected] that my Linux receive this email from the Exchange Server.
I have configured the sendmail.cf like Oracle says on the Administrator’s Guide manual. I have add the ip and name of the Exchange on /etc/mail/access to relay. But still i cant send emails outside. If i test the sendmail -v testuser, and all says ok. I have tested telnet domain 25, and all went ok.
I think the only problem is forward the oes to exchange to forward outside
Any help
Many thanks
Thank you
Jail

Hi andreas
Yes i also think that it maybe resolved by an alias and forwarding
Th COM is the domain in the OES is the com default. Is this domain that you referring?
The company domain that is in the OES(e.g xpto.com) is the same that is in the Exchange. Do you think this will be a problem? Must i create one like oes.xpto.com? To work with the OES?
I have created a relay on the access file, but is this ok? Or must i need change anything else? Mean while i will check that url
And yes i can connect to the Exchange on port 25 from the RH
Since i have several user/account created on the OES, the only think that i did not understand yet is how can they receive any email?
The fax@domain was a example. But i can collect all outside emails from that account and with some rules forward to any other OES account? I think this is possible? Or this is the hard way to configure the OES?
Thank You
Jail

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