Thank you for your reply, all person who gave me help :)
I obeied your suggestion, but still only to fail...
> o Try to create a cyrus system user (uid 76) and a shadow system
> group (gid 76).
>
> o Add user cyrus to group shadow and to group mail (supplementary group)
[root@imap /root]# id cyrus
uid=76(cyrus) gid=12(mail) groups=12(mail),76(shadow)
> o Create the /etc/sasldb file owned by cyrus/mail and 640 perms
[root@imap /root]# ls -l /etc/sasldb
-rw-r----- 1 cyrus mail 12530 9 4 13:36 /etc/sasldb
> A) Create the cyrus user to Cyrus (actually SASL); you
> can do it using saslpasswd in the same way you used it
> to create cyrususer. cyrus is the only user able to create
> mailboxes as indicated by the "admins: cyrus" line in
> your /etc/imapd.conf file. I thin you don't need
> to create a mailbox for this cyrus user.
[root@imap /root]# saslpasswd cyrus
Password: ***** <-- input 'cyrus'
Again (for verification): ***** <-- input 'cyrus'
> B) With the server running, use cyradm to connect to it (see
> the man page for switches), login as cyrus using the
> password you choose in step A)
[root@imap /root]# /usr/cyrus/bin/master &
> C) create the the mailbox for the cyrususer
>
> cm user.cyrususer
>
> and quit cyradm
[root@imap /root]# cyradm --user cyrus localhost
Please enter your password:
imap.s1.itd.nes.nec.co.jp> cm user.cyrususer
imap.s1.itd.nes.nec.co.jp> quit
The log /var/log/messges says next.
Sep 4 14:27:36 imap imapd[19810]: login: imap.s1.itd.nes.nec.co.jp[127.0.0.1] cyrus
DIGEST-MD5 User logged in
so sasldata base seems to work fine.
> D) Now you can try your imtest experiments again
[root@imap /root]# imtest -p imap -u cyrususer localhost
C: C01 CAPABILITY
S: * OK imap.s1.itd.nes.nec.co.jp Cyrus IMAP4 v2.0.16 server ready
S: * CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ NAMESPACE UIDPLUS ID
NO_ATOMIC_RENAME UNSELECT MULTIAPPEND SORT THREAD=ORDEREDSUBJECT THREAD=REFERENCES
IDLE AUTH=DIGEST-MD5 AUTH=CRAM-MD5 X-NETSCAPE
S: C01 OK Completed
C: A01 AUTHENTICATE DIGEST-MD5
S: +
cmVhbG09ImltYXAuczEuaXRkLm5lcy5uZWMuY28uanAiLG5vbmNlPSJRdnBscnV0WVJSSEdla3ZnZmpFYXFueXBEd0hISlRVellGMGtJZFRweVFZPSIscW9wPSJhdXRoLGF1dGgtaW50LGF1dGgtY29uZiIsY2lwaGVyPSJyYzQtNDAscmM0LTU2LHJjNCxkZXMsM2RlcyIsY2hhcnNldD11dGYtOCxhbGdvcml0aG09bWQ1LXNlc3M=
Please enter your password:
C:
dXNlcm5hbWU9InJvb3QiLHJlYWxtPSJpbWFwLnMxLml0ZC5uZXMubmVjLmNvLmpwIixhdXRoemlkPSJjeXJ1c3VzZXIiLG5vbmNlPSJRdnBscnV0WVJSSEdla3ZnZmpFYXFueXBEd0hISlRVellGMGtJZFRweVFZPSIsY25vbmNlPSJqZVJKd1h5REthRjcrRHVYOHozRW5RZDBtTjJ2N0E2QmNqdDE2TDB3QmRrPSIsbmM9MDAwMDAwMDEscW9wPWF1dGgtY29uZixjaXBoZXI9InJjNCIsY2hhcnNldD11dGYtOCxkaWdlc3QtdXJpPSJpbWFwL2ltYXAuczEuaXRkLm5lcy5uZWMuY28uanAiLHJlc3BvbnNlPTFiYjc3NWY1NzAyNDE0OWUxYmU2Nzk3OTE5YjBkYmMz
S: A01 NO authentication failure
Authentication failed. generic failure
Security strength factor: 128
The log /var/log/messges says next.
Sep 4 15:03:47 imap imapd[19878]: badlogin: imap.s1.itd.nes.nec.co.jp[127.0.0.1]
DIGEST-MD5 authentication failure
I could succeed to create mailbox with cyradm 'cm' command and delete
mailbox with cyradm 'dm' command.
I don't know what's wrong... confusing further... I am going on
investigating this matter with some document, but if you could give me
more information, I appreciated it.
--hara