Global rules to drop all other recipients
or set SMTP relayer to your Exchange server (and catch all messages there, bouncing as needed)
as for receiving, just don't allow port 25 connections, block at firewall or edge device or via hmailserver.ini
Use this forum if you have installed hMailServer and want to ask a question related to a production release of hMailServer. Before posting, please read the troubleshooting guide. A large part of all reported issues are already described in detail here.
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