MtaMailFromVariable

Variables available in expression contexts that reference MtaMailFromVariable.

Variable	Description
listener	Name of the listener that accepted the connection
remote_ip	IP address of the client
remote_port	Port of the client (number)
local_ip	Local IP address the client connected to
local_port	Local port the client connected to (number)
protocol	Listener protocol, smtp or lmtp
is_tls	Whether the connection uses TLS (boolean)
sender	MAIL FROM address in lowercase, empty for the null sender
sender_domain	Domain of the MAIL FROM address, empty for the null sender
authenticated_as	Name of the authenticated account, empty when the session is not authenticated
asn	Autonomous system number of the client, 0 when unknown
country	Country code of the client, empty when unknown