In the application web interface window, select the Settings → Built-in MTA → Domains section.
The table displays the following information about transport map records:
Record is the name of the domain, subdomain, or email address for which routing is configured.
Domain type is the type of transport map record (domain, subdomain, or email address).
Local domain is a switch that allows setting if the transport map record is a local domain (not displayed for records of the Email address type). For local domains, emails are allowed from all sources, including untrusted sources.
Protocol is the email protocol used for routing. SMTP and LMTP protocols are available; the default protocol is SMTP.
Destination address is the IP address, server name, or domain name to which mail is being routed.
Port is the port used for connecting to the server to which the mail is being routed.
TLS security level is the TLS encryption mode used to encrypt connections for this domain or subdomain (not displayed for records of the Email address type) that is used for outgoing messages to this domain or subdomain.
DKIM records is the DNS record of the public DKIM key required for configuring DKIM signatures of messages.