[Dovecot] Dovecot-2.1.14 - pop3 processes always hangs forever - another follow-up

Hello,

With the same basic configs as in my previous messages, I tried with the maildir format instead of the mbox format.

That is, in both cases ("virtual" uids/gids vs a single "real" uid/gid), doveconf -n shows: mail_location = maildir:~/maildir instead of: mail_location = mbox:~/mboxes:INBOX=~/mboxes/inbox

Here too, with "virtual" uids/gids, connections thru pop hang forever, while imap connections behave flawlessly.

And with a single "real" uid/gid, connections thru both pop and imap behave as expected.

As a result, it could be inferred that the problems I am encountering with pop connections do not depend on the mailbox format in use, and that they are entirely related to "virtual" uids/gids.

To recap: with this very basic config

# 2.1.14: /_ETC/dovecot/dovecot.conf
# OS: Darwin 12.2.1 x86_64  
auth_verbose = yes
disable_plaintext_auth = no
mail_debug = yes
mail_location = mbox:~/mboxes:INBOX=~/mboxes/inbox
passdb {
  args = /_ETC/dovecot/db.conf
  driver = sql
}
ssl = no
userdb {
  driver = prefetch
}

a pop connection hangs forever after the pass command

$ telnet 127.0.0.1 110
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
+OK Dovecot ready.
user user2
+OK
pass pass2

and the log shows (here, when the user connects for the first time)

dovecot[2997]: pop3-login: Login: user=<user2>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=3113, secured, session=<GTOlMjfV3gB/AAAB>
dovecot[2997]: pop3(user2): Debug: Effective uid=100003, gid=100003, home=/_Data/Mailstores/100003
dovecot[2997]: pop3(user2): Debug: Home dir not found: /_Data/Mailstores/100003
dovecot[2997]: pop3(user2): Debug: fs: root=/_Data/Mailstores/100003/mboxes, index=, control=, inbox=/_Data/Mailstores/100003/mboxes/inbox, alt=
dovecot[2997]: pop3(user2): Debug: Namespace : /_Data/Mailstores/100003/mboxes doesn't exist yet, using default permissions
dovecot[2997]: pop3(user2): Debug: Namespace : Using permissions from /_Data/Mailstores/100003/mboxes: mode=0700 gid=-1
dovecot[2997]: pop3(user2): Debug: Namespace : /_Data/Mailstores/100003/mboxes/inbox doesn't exist yet, using default permissions
dovecot[2997]: pop3(user2): Debug: Namespace : Using permissions from /_Data/Mailstores/100003/mboxes: mode=0700 gid=-1
dovecot[2997]: pop3(user2): Debug: Namespace : /_Data/Mailstores/100003/mboxes/inbox doesn't exist yet, using default permissions
dovecot[2997]: pop3(user2): Debug: Namespace : Using permissions from /_Data/Mailstores/100003/mboxes: mode=0700 gid=-1

With exactly the same config, imap connections are fully functional.

Does someone have an explanation?

TIA, Axel