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I'm tring to use XOOPS class.smtp.php and have been reading rfc2821 and other docs. Does anyone have a simplified order of how to implement it? Right now I have this:
CONNECTION ESTABLISHMENT
EHLO or HELO
MAIL
RCPT
DATA
RSET
VRFY
EXPN
HELP
NOOP
QUIT
But this doesn't state where the authentication step occurs. Can anyone help me?