how to change the hostname/fqdn printed in the alert messages

Hello

When Xymon sends alerts, on email, especially, there's the "See" section at the bottom which is the exact URL to the alert trigger host. I suppose, Xymon, uses "hostname -f" for the hostname, how can I tell it not to use this because my apache is configured to some different domain and those url's are basically useless. Not sure how clear I was, but still if there's someone there who understood my issue, please help me.

Thanks.

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Ciprian