Panasonic UF-9000 Service Manual page 262

containing a BASE64 encoded string. If the client wishes to cancel an authentication exchange, it issues a
line with a single "*". If the server receives such an answer, it must reject the AUTH command by sending a
501 reply.
If the server cannot BASE64 decode the argument, it rejects the AUTH command with a 501 reply. If the
server rejects the authentication data, it should reject the AUTH command with a 535 reply unless a more
specific error code, such as one listed in Error Codes below, is appropriate. Should the client successfully
complete the authentication exchange, the SMTP server issues a 235 reply.
The service name specified by this protocol's profile of SASL is "smtp".
Error Codes
The following error codes may be used to indicate various conditions as described.
432: A password transition is needed
This response to the AUTH command indicates that the user needs to transition to the selected
Authentication mechanism. This is typically done by authenticating once using the plain authentication
mechanism.
538: Encryption required for requested authentication mechanism
This response to the AUTH command indicates that the selected authentication mechanism may only
be used when the underlying SMTP connection is encrypted.
454: Temporary authentication failure
This response to the AUTH command indicates that the authentication failed due to a temporary server
failure.
530: Authentication required
This response may be returned by any command other than AUTH, EHLO, HELO, NOOP, RSET, or
QUIT. It indicates that server policy requires authentication in order to perform the requested action.
Ver. 1.0
262
UF-9000
DP-180/190
JAN 2004