Trying to get SMTP auth working with alpine, I came across a bug.
Alpine sends AUTH PLAIN and waits for a 334 response, then sends the
auth string. According to the RFC, the server should reply with 334
and a nothing else, but in Auth.pm qpsmtpd responds with "334 Please
continue." the "Please continue" is interpreted as a non-zero
length initial challenge which causes alpine (and maybe other
clients?) to abort the session.
Signed-off-by: Charlie Brady <charlieb@budge.apana.org.au>
Signed-off-by: Robert <rspier@pobox.com>