imap login fails - user not found / auxprop / sasldb2

[Peter Markom]

Hello there, any idea what the imtest-output below means ?
Especially why it first says "go ahead" and then "Login failed" ?


master:~ # imtest -t "" -m login -u nospam -a nospam -r koordinaten.at 
localhost
S: * OK master Cyrus IMAP4 v2.2.3 server ready
C: C01 CAPABILITY
S: * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX-REFERRALS 
NAMESPACE UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY 
SORT THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE IDLE STARTTLS 
X-NETSCAPE
S: C01 OK Completed
C: S01 STARTTLS
S: S01 OK Begin TLS negotiation now
verify error:num=18:self signed certificate
TLS connection established: TLSv1 with cipher AES256-SHA (256/256 bits)
C: C01 CAPABILITY
S: * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX-REFERRALS 
NAMESPACE UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY 
SORT THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE IDLE AUTH=LOGIN 
AUTH=PLAIN SASL-IR X-NETSCAPE
S: C01 OK Completed
Please enter your password:
C: L01 LOGIN nospam {8}
S: + go ahead
C: <omitted>
S: L01 NO Login failed: user not found
Authentication failed. generic failure
Security strength factor: 256