true if server advertises STARTTLS. You cannot get valid value before opening SMTP session.
true if this object uses STARTTLS when server advertises STARTTLS.
Enables SMTP/TLS (STARTTLS) for this object. context is a OpenSSL::SSL::SSLContext object.
Disables SMTP/TLS (STARTTLS) for this object. Must be called before the connection is established to have any effect.
Parses argument, converts and returns arg, block and result of conversion. Yields at semi-error condition instead of raising an exception.
@return the current line in the source