These are a sanatized set of files that will allow SMTP relay functionality to M365 tenants. This is a semi-secure configuration (i.e. non-open relay). Additionally this relay was designed to be ...

The server suddenly (just this afternoon) started refusing external email because our Barracuda is allegedly listed in zen.spamhaus.com (though checking the IP on the site says it's clear, so the ...

This container attempts to simplify and streamline setting up inbound and outbound mail relays, to protect and enhance self hosted email servers (eg: Microsoft Exchange). However, if you find an ...