Virtual SMTP Server processes incoming and outgoing mail. SMTP
server settings include the following parameters:
GateWall Antispam server domain name, number of and lag between
delivery retries ("Delivery Settings");
Delivery mode: MX delivery or delivery via a relay server
("SMTP Delivery Settings"). Delivery with relay server
authorization is also supported;
Relay server mode ("Incoming Relay Settings"). GateWall
Antispam can be used as a relay server to forward messages from
external domains. If you want your GateWall Antispam to be an open
relay server, we recommend restricting the number of IP addresses
to which connection will be authorized. You can list the authorized
IP addresses in the "SMTP - Open Servers" section.
