Dear list,
We are finally back to our task of migrating from cyrus to dovecot.
dovecot mostly does what we want in terms of POP3/IMAP server. Now we
are preparing for migration. The plan is to use dovecot as proxy for
not-yet migrated accounts. This works wonderfully for IMAP but not for
LMTP. Here's what I find in the logs when I try to deliver e-mail to
the dovecot lmtp port:
Jun 25 19:03:06 klee dovecot: lmtp(5037): Debug: none: root=, index=,
indexpvt=, control=, inbox=, altJun 25 19:03:06 klee dovecot: lmtp(5037):
Connect from IP-address
Jun 25 19:03:06 klee dovecot: lmtp(5037): Debug: user USER: Auth PASS
lookup returned temporary failure: reason=Configured passdbs don't
support crentials lookups
Jun 25 19:03:06 klee dovecot: lmtp(5037): Debug: auth input:
reason=Configured passdbs don't support crentials lookups
Delivery works fine without proxy (lmtp_proxy = no). What I would need
to do is to configure the proxy part so that POP3/IMAP uses the accounts
username/password and LMTP uses a special account to deliver e-mail.
This is dovecot-ldap.auth (the =proxy=y will be replaced by a field from
ldap once the tests work):
uris = ldaps://our.ldap.server/
tls = no
auth_bind = yes
base = dc=mur,dc=at
deref = never
scope = subtree
user_attrs = =home=/srv/vmail/mail/%Lu,=uid=999,=gid=999
user_filter = (&(objectClass=posixAccount)(uid=%u))
pass_attrs
uid=user,userPassword=password,=proxy=y,=host=our.imap.server,=starttls=yes
iterate_attrs = uid=user
iterate_filter = (objectClass=posixAccount)
dovecot -n
# 2.2.13: /etc/dovecot/dovecot.conf
# OS: Linux 3.14-1-amd64 x86_64 Debian jessie/sid
auth_verbose = yes
disable_plaintext_auth = no
lmtp_proxy = yes
login_greeting = Dovecot is spitze!
mail_debug = yes
mail_location = maildir:/srv/vmail/mail/%u
mail_plugins = acl
namespace {
hidden = no
inbox = no
list = children
location = maildir:/srv/vmail/mail/%%u:INDEX=/srv/vmail/mail/%u/shared/%%u
prefix = shared.%%u.
separator = .
subscriptions = yes
type = shared
}
namespace inbox {
hidden = no
ignore_on_failure = no
inbox = yes
list = yes
location mailbox Drafts {
auto = subscribe
special_use = \Drafts
}
mailbox Junk {
auto = subscribe
special_use = \Junk
}
mailbox Sent {
auto = subscribe
special_use = \Sent
}
mailbox Trash {
auto = subscribe
special_use = \Trash
}
prefix = INBOX.
separator = .
subscriptions = yes
type = private
}
passdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
driver = ldap
}
plugin {
acl = vfile
acl_shared_dict = file:/var/lib/dovecot/db/shared-mailboxes.db
sieve = ~/.dovecot.sieve
sieve_dir = ~/sieve
}
protocols = " imap lmtp pop3"
service auth {
unix_listener auth-userdb {
group = vmail
user = vmail
}
}
service lmtp {
inet_listener lmtp {
address = 172.16.16.78
port = 24
}
user = vmail
}
ssl_cert = </etc/dovecot/server.pem
ssl_key = </etc/dovecot/private/server.pem
userdb {
driver = prefetch
}
userdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
driver = ldap
}
protocol lmtp {
mail_plugins = acl quota sieve
postmaster_address = postmaster at mur.at
}
protocol imap {
mail_plugins = acl imap_acl
}
Regards,
--
j.hofm?ller
Ger?chtegenerator http://plagi.at/geruecht
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