true if this object uses STARTTLS.
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.
for debug
for debug
@return the XMLDecl
standalone value of this document as a String
. If no XMLDecl
has been set, returns the default setting.