blocking on exchange 2003

AXISHK used Ask the Experts™
is it possible to reject email from particular IP om Exchsnge?

we receive a lot of spam from particular source
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You should give serious consideration to upgrading your Exchange 2003 server to a supported version.

In the meantime this has been addressed previously -
Scott CSenior Engineer
If/when you decide to upgrade, if you want to go to Exchange 2013/2016, it will have to be a two-step migration.

You'd have to migrate to Exchange 2010, then one of the newer versions.

On the other hand, you can direct migrate to O365 from Exchange 2003.

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