Sends an AUTHENTICATE command to authenticate the client. The
auth_type parameter is a string that represents the
authentication mechanism to be used. Currently Net::IMAP supports authentication mechanisms:
LOGIN:: login using cleartext user and password.
CRAM-MD5:: login with cleartext user and encrypted password
           (see [RFC-2195] for a full description).  This
           mechanism requires that the server have the user's
           password stored in clear-text password.For both these mechanisms, there should be two args: username
and (cleartext) password.  A server may not support one or other of these
mechanisms; check capability()
for a capability of the form âAUTH=LOGINâ or âAUTH=CRAM-MD5â.
Authentication is done using the appropriate authenticator object: see @@authenticators for more information on plugging in your own authenticator.
For example:
imap.authenticate('LOGIN', user, password)
A Net::IMAP::NoResponseError is raised if authentication fails.
Please login to continue.