SMTP
SASL
SASL AUTH OAUTH2
RFC4954
RFC6749
#
# Server-side
AUTH XOAUTH2
REPLY AUTH 334 XOAUTH2 supported
REPLY dXNlcj11c2VyAWF1dGg9QmVhcmVyIG1GXzkuQjVmLTQuMUpxTQEB 235 Authenticated
#
# Client-side
smtp
SMTP OAuth 2.0 (XOAUTH2) authentication
mail body
smtp://%HOSTIP:%SMTPPORT/908 --mail-rcpt recipient@example.com --mail-from sender@example.com -u user --oauth2-bearer mF_9.B5f-4.1JqM -T -
#
# Verify data after the test has been "shot"
EHLO 908
AUTH XOAUTH2
dXNlcj11c2VyAWF1dGg9QmVhcmVyIG1GXzkuQjVmLTQuMUpxTQEB
MAIL FROM:
RCPT TO:
DATA
QUIT
mail body
.