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Exchange 2003 Front /Back end

jskfan
jskfan asked
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Last Modified: 2012-05-11
Any expert out there to explain why Microsoft came up with Exchange Front/Back end servers.?
I believe even without Exchange Front end , mobile users still can use OWA to access their mailboxes.

Is it a factor of security? most of the envuronments don't put the FE in the DMZ, they just put it in the same LAN as the Back end.
Do internet emails like Yahoo, Hotmail go through FE to get the message to exchange server?

Many Thanks
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
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Commented:
As you Yahoo and Hotmail, they are using different systems.

But they will have dediciated SMTP Servers, Anti-Virus, Anti-SPAM, appliances, before the email reaches the back-end mailboxes in their secure internal LAN.

What we "see" is a secure front-end which has access to proxyied - back end servers via firewalls to back end servers containing all the mailboxes (and the mailboxes will be on multipe cloud based platforms and grid servers).

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