Change HTTP/1.1 503 Service Unavailable error on Front-end

My Front-End Exchange server never really goes down (it doesn't do anything that would make it), however, occasionally my back-end will go down (patches, hardware issues etc).  Although it doesn't happen often, it is inevitable that when it happens, I get the barrage of "did you know that email is down" calls.  Primarily, my concern is that when people go to OWA & login, they get re-directed to the HTTP/1.1 503 Service Unavailable error page, which means that FE cannot communicate with the BE.  I would like to replace the 503 error page with a custom generated HTM page that has a hyperlink to my IT Systems Status webpage.  That way everyone will have the ability to click on the link & see if email is down, if it isn't reported, to report it.

I looked on my FE box & found that the custom errors section doesn't have 503 that on the back-end Exchange that it is coming from?  Or how can I change this?

Hopefully this makes sense.  I am on Exchange/Windows 2003.

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Last time I tried to do this (for exactly the same reasons you are) I came to the conclusion that it is not changeable.

Point 3.


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rustyrpageAuthor Commented:
That link didn't work...?

That's annoying then huh?  I guess Microsoft wants us to get as many calls as possible as administrators =)
The link is working for me; the key point is this;

3. In the Error messages for HTTP errors list, click the HTTP error that you want to change, and then click Edit.

  Note     The following errors are not customizable: 400, 403.9, 411, 414, 500, 500.11, 500.14, 500.15, 501, 503, and 505.
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