Protected Domain in Fortimail

--> Protected Domains are the domains which are protected by fortimail whenever it receives any email associated with that domain.

--> Protected Domains should be created in Fortimail in order to implement e-mail flow.

--> Protected Domains are also defined which email messages fortimail considers being inbound and outbound.

--> Fortimail considers an email message to be incoming email if the receiving domain matches to a protected domain, otherwise it considers as an outgoing domain.

--> No additional configuration is required in fortimail for incoming E-Mail messages, as they are relayed by default.

--> Outgoing E-mail messages are rejected by default by fortimail device unless the sender is authenticated.

--> This behavior prevents fortimail from becoming an open relay.

--> Whenever fortimail receives an email, it checks two parameters,

i) the IP address of an SMTP server

ii) the domain name portion