Creating Dovecot Master user throws "Username character disallowed by auth_username_chars : 0x2a " error

27 Apr 2016


      Hello,
Am trying to create a master user on dovecot. However, it throws dovecot:
auth: plain(?,127.0.0.1): Username character disallowed by
auth_username_chars: 0x2a (username: loginuser*master) ".
#telnet localhost 143
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE
STARTTLS AUTH=PLAIN
1 login loginuser*master mypassword

1 NO [AUTHENTICATIONFAILED] Authentication failed.
# log output
dovecot: auth: plain(?,127.0.0.1): Username character disallowed by
auth_username_chars: 0x64 (username: master)
# cat passwd.master
master:{SHA}LORtG60Uqg2bPSlOB8PW2cLI0TE=
#And here's the output of my dovecot -n
# 2.0.16: /usr/local/etc/dovecot/dovecot.conf
# OS: FreeBSD 8.2-RELEASE amd64
auth_master_user_separator = *
disable_plaintext_auth = no
mail_location = maildir:~/Maildir
namespace {
inbox = yes
location =
prefix = INBOX.
separator = .
type = private
}
passdb {
args = /usr/local/etc/dovecot/dovecot-sql.conf
driver = sql
}
passdb {
args = /usr/local/etc/dovecot/passwd.master
driver = passwd-file
master = yes
}
protocols = imap pop3
service auth {
client_limit = 6000
}
service imap {
process_limit = 2048
vsz_limit = 1256 M
}
service pop3 {
process_limit = 2048
}
userdb {
args = /usr/local/etc/dovecot/dovecot-sql.conf
driver = sql
}
protocol pop3 {
pop3_uidl_format = UID%u-%v
}
I don't know what am doing wrong. Any help would be welcome. Thanks
Thanks & regards,
David Okwii,
Mobile(default): +256-791-040-262
Christ in me the Hope of Glory(Col.1:27)