[tpop3d-discuss] -ERR Unable to open mailbox; it may be locked by another concurrent session

[Emil Filipov]

Hi,

 

I am trying to install tpop3d on a Gentoo Linux with Maildir support. Here is my conf:

 

listen-address: 0.0.0.0
max-children: 10
strip-domain: yes
timeout-seconds: 60
mailbox: maildir: $(home)/Maildir
tcp-wrappers-name: pop3
auth-passwd-enable: yes

Here are the interesting parts of  tpop3d -h:

 

tpop3d # tpop3d -h

tpop3d, version 1.4.2

......

Available authentication drivers:

 

  auth-pam         Uses Pluggable Authentication Modules
  auth-passwd      Uses /etc/passwd or /etc/shadow
  auth-mysql       Uses a MySQL database

 

Available mailbox drivers:

 

  bsd              BSD (`Unix') mailspool
  maildir          Qmail-style maildir
  empty            Empty mailbox

This tpop3d has TCP Wrappers support.

.............

And finally here is the log from a failed session:

 

TCP Wrappers support enabled, using daemon name `pop3'
listener_new: gethostbyaddr(0.0.0.0): cannot resolve name
listener_new: 0.0.0.0: no domain suffix can be appended for this address
listener_new: 0.0.0.0: using fallback domain suffix `blabla.com'
listening on address 0.0.0.0, port 110, domain blabla.com
1 authentication drivers successfully loaded
net_loop: tpop3d version 1.4.2 successfully started

 

connection_sendresponse: client [5]192.168.0.110/blabla.com: sent `+OK <address@hidden>'
listeners_post_select: client [5]192.168.0.110/blabla.com: connected

 

connection_parsecommand: client [5]192.168.0.110/blabla.com: received `user tie'
connection_sendresponse: client [5]192.168.0.110/blabla.com: sent `+OK Tell me your password.'

 

connection_parsecommand: client [5]192.168.0.110/blabla.com: received `pass [...]'
authcontext_new_user_pass: began session for `tie' with passwd; uid 1000, gid 10
fork_child: [5]tie(192.168.0.110): successfully authenticated with passwd
fork_child: new child is PID 7082
mailspool_new_from_file: Is a directory
dotfile_unlock(/home/tie/Maildir): open: No such file or directory
connection_sendresponse: client [5]tie(192.168.0.110): sent `-ERR Unable to open mailbox; it may be locked by another concurrent session.'
authcontext_delete: finished session for `tie' with passwd

--------- Cut --------------- Cut  ---------------------------------------------------------------------------------------------------------------------------

I have tried to install tpop3d v1.5.2 but got the same results. Even more interesting is the thing that on another serverthe exact same configuration

works with the exact same version of tpop3d with no problems at all. The only significatn difference that comes to my mind is that the /home is on a

ResiserFS where it works, while here is Ext3. But I can't imagine how this can be a problem.

 

I saw a prevous post of someone troubled by the same thing, but the answer was something like "Check your maildir for a *.lock file".

Well I don't have one (*.lock file I mean). And I'm pretty sure that there are no concurrent pop3 sessions.

 

Any ideas?

 

Regards,

Emil Filipov