Mail Limit Relayusers to a specific ip/network
Improve the possibilty of the mail protection to define specific single/multiple IPs and/or networks which are allowed to use smtp auth. to send a mail from external through the UTM to other receiver (internal and external)
We have had an open bug report on Sophserv but the sophos contact advised us to open a feature request here.
Add. information: The blacklist/whitelist box is available at the moment. But if you assign "Any IPv4 Internet" Default rule to blacklist(as mentioned by sophos support - we speak of the SMTP Relay Tab) blocks all SMTP traffic not only the relay traffic.