union (union (string | string) | string (length: 1..253))
required
-
The SMTP host
smtp-port
uint16
optional
587
Sending port
enable-tls
boolean
optional
true
Should this email-subsystem use TLS
default-sender
string
required
-
An RFC822 email address that will be used as the from name when sending emails
message-id-domain
string
optional
-
Override the domain part of the auto-generated Message-ID email header. When configured, the Message-ID will be in the format <uuid.timestamp@message-id-domain>, preventing server hostnames from being exposed in outgoing emails.
The authentication method to use when connecting to the SMTP server. When omitted, no authentication is used. Basic (username/password) and OAuth are mutually exclusive.