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Message Filtering on Exchange 5.5

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by johndjauch 1 view

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I am trying to block email coming in by country-code top-level domains. (ie : .uk, .du, .ru, .jp??etc) on an Exchange server. It would seem what a person would need to do is open up message filtering, click the ?Add? button, type in ?jp? (without quotes) and click OK. This should block mail coming in from the .jp domain, right? Can anyone confirm that by using the message filtering in Exchange 5.5, a mail server can effectively block incoming mail from those domains? (ie: block spam.jp, porn.jp, vol.com.jp, etc)
I would appreciate if the respondent would provide a reference to a book, web page, etc.)

6 replies

by [_rick_>

would want to use #.jp this should block ALL messages originating from this location. May have to add the entry via a registry hack - depends on Service Pack level.

See technet article Q193437

\\support.microsoft.com search for Q193437

by johndjauch

The server involved is an Exchange 5.5 SP4 with all known patches applied. Using the #.jp generates the "Domain ...specified is invalid" (Same as in the article.)

by [_rick_>

Try placing the value directly into the Turftable registry entry as menitoned in the Q article Q193437. This will bypass the GUI front-end.

Good luck.

by shanghai sam

I am aware of 3rd part utilities that would perform this but there should be a way that Exchange can block these domains without help from another vender. I looked at the registry hack again. I did not see the Multi String option on the Edit menu (as per the article). Looking at the registry entry (which appeared to be coded in Hex), I doubt it would be a good idea to make changes to a server this important. Thanks anyway.

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