troubleshooting Question

How to use external SMTP source in exchange server 2007 sp2 ?

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nexgenitFlag for United States of America asked on
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Dear All,

We are migrating our exchange server to google mail system, and and everything is going thanks to the easy to use google tools. But we are stuck in one point:

Since there are hundreds of users, and they all use outlook 2007 to communicate with email, we have to install outlook google mail sync tool to have them the same interface, exchange like usage. Although, this is very neat tool, it would take 3 days for 2 techs to finish all the installations on all workstations.

Meanwhile, users will be sending email to each other. If a user's workstation has outlook sync tool is installed, that user will be sending and receiving email from google mail servers, if the sync tool is not installed yet, he will still connecting to the exchange server to send and receive emails.

Google domain management has an option to forward all received emails to an external source (in this case exchange server), therefore, even if we change the mx records now to point to google mail servers, the people who is connected to the exchange directly, will receive the email as it was sent to them. There is no problem with this part.

If a user's workstation has still not have sync tool installed from google, when he sends an email to another user in the organization that has sync tool installed from google and getting his email delivery from google, that email will not arrive at google mail servers, it will simply stay in the recepient user's inbox located at exchange server. Because exchange server will locate the user's mailbox locally, and simply deliver them email to there. And naturally, the recepient waiting email to arrive is using google email servers to send and receive, never get the email, because it stayed on the exchange server.

I must find a way to tell exchange that, if you receive an email from anywhere (inside or outside), forward it to google mail server. So, in exchange 2007, how can i define an external smtp source, that will deal with the delivery of all the email, instead of delivering it locally ?

Thank you for all your help.

Regards.
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