- login \n username \n password [\n] -- plaintext login
- cram-md5 \n challenge \n response [\n] -- base-64 encoded challenge and response
- cram-sha1 \n challenge \n response [\n] -- ditto
- cram-sha256 \n challenge \n response [\n] -- ditto
+ service \n login \n username \n password [\n] -- plaintext login
+ service \n cram-md5 \n challenge \n response [\n] -- base-64 encoded challenge and response
+ service \n cram-sha1 \n challenge \n response [\n] -- ditto
+ service \n cram-sha256 \n challenge \n response [\n] -- ditto