Host Name & IP

SMTP host name

This value is the Fully Qualified Domain Name (FQDN) that will be used in the SMTP HELO/EHLO instruction when sending mail for this domain. For incoming connections, if the This domain recognizes only connections made to the host IP address option below is used, the domain is bound to its own IP address and the proper FQDN will be used for connections made to that domain. Using that option, however, is not strictly required for this to work. But, if you have two or more domains using the same unbound IP address then the FQDN used will be the one that is associated with the domain that is first in alphabetical order.

In most cases the FQDN will be either the Domain name or a subdomain of it (for example, “mail.example.com”), but an IP literal syntax such as “[192.0.2.0]” may also be used. When no FQDN value is specified, MDaemon will use the Default Domain’s FQDN.

Host IP address

Enter the IP address to associate with this domain.

This domain recognizes only connections made to the host IP address

Click this checkbox if you want to restrict connections to the domain to the Host IP address specified above. By default this only applies to inbound connections. Outbound socket binding is governed by an option under "Preferences » System."

See:

Domain Manager

Preferences » System