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Is there a way to block sending domains
Question asked by Shane Rolfe - Today at 12:17 AM
Unanswered
We have an internal Smartermail host purely for relaying with devices on our local network. We have systems that could send over 10000 emails for marketing purposes.
We encountered an issue where if the sender domain belongs to someone else then Smartermail would try to email that email provider, eg Yahoo, directly through MX instead of routing through to our Smart host.

We have a number of smarthosts dependant on the recipient domain but we do not want "fake" sender domains to route through using MX.

Is there a way to block or to allow only specific sender domains and block everything else?
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