Examples using... smtp.PlainAuth()
Recent
SendMail connects to the server at addr, switches to TLS if
possible, authenticates with the optional mechanism a if possible,
and then sends an email from address from, to addresses to, with
message msg.
The addr must include a port, as in "mail.example.com:smtp".
PlainAuth returns an Auth that implements the PLAIN authentication
mechanism as defined in RFC 4616. The returned Auth uses the given
username and password to authenticate to host and act as identity.
Usually identity should be the empty string, to act as username.