RE: service-specific userdb affecting lmtp, quota-service

Steffen Kaiser Tue, 02 Aug 2016 21:45:55 -0700

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On Tue, 2 Aug 2016, Michael Fox wrote:

Update:

I was able to eliminate the /var/log/mail.err error messages (shown below)
by creating a userdb.quota-status and userdb.lmtp passwd-file.  However,
since userdb.pop3 and userdb.imap will have different extra-fields values
for namespace (different namespace/xxx/inbox=yes values) I can't simply
create userdb.quota-status and userdb.lmtp as the union of userdb.pop3 and
userdb.imap.  At a minimum, the extra-fields namespace info has to be left
out.


do LMTP and Quota-status fail, if you symlink them to the imap version?

So this creates the question:  For each service, which fields does the
userdb need to contain?  I can't find that documented anywhere.

For example, for the quota-status service, I presume the following are
needed:
-- username
-- home directory  (since mail_location = maildir:~/Maildir)
-- any "quota=" overrides in the extra-fields
-- nothing else

Is that right?


And I presume userdb.lmtp needs to return:
-- username
-- home directory  (since mail_location = maildir:~/Maildir)
-- nothing else

Is that right?

Thanks,
Michael

-----Original Message-----

The service specific passwd-file userdb is causing quota-status and lmtp
to
fail.

Using:
userdb {
  args = ... /etc/dovecot/auth.d/%d/userdb.%s
}

I'm getting the following in /var/log/mail.err when I try to send/receive
mail:

Aug  1 15:46:57 n6mef-gw dovecot: auth: Error:
passwd-file(mef...@email.n6mef.org):
stat(/etc/dovecot/auth.d/email.n6mef.org/userdb.quota-status) failed:
Address family not supported by protocol
Aug  1 15:47:08 n6mef-gw dovecot: auth: Error:
passwd-file(mef...@email.n6mef.org):
stat(/etc/dovecot/auth.d/email.n6mef.org/userdb.lmtp) failed: Address
family
not supported by protocol

I don't have a userdb.quota-status or userdb.lmtp.

Is there something else that needs to be in the configuration to prevent
these services from needing their own userdb?

Thanks,
Michael


$ doveconf -n
# 2.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 3.16.0-76-generic x86_64 Ubuntu 14.04.4 LTS
auth_mechanisms = cram-md5
auth_verbose = yes
mail_gid = vmail
mail_location = maildir:~/Maildir
mail_plugins = " quota"
mail_uid = vmail
namespace inbox {
  inbox = yes
  location =
  mailbox Drafts {
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Trash {
    special_use = \Trash
  }
  prefix =
}
passdb {
  args = /etc/dovecot/deny-users
  deny = yes
  driver = passwd-file
}
passdb {
  args = scheme=cram-md5 username_format=%n /etc/dovecot/auth.d/%d/passdb
  driver = passwd-file
}
plugin {
  quota = maildir:User quota
  quota_grace = 10%%
  quota_rule = *:storage=50MB
  quota_rule2 = Trash:storage=+10%%
  quota_status_nouser = DUNNO
  quota_status_overquota = 552 5.2.2 Mailbox is full
  quota_status_success = DUNNO
  quota_status_toolarge = 552 5.2.3 Message is too large
  quota_warning = storage=90%% quota-warning 90 %n %d
  quota_warning2 = storage=75%% quota-warning 75 %n %d
}
pop3_lock_session = yes
protocols = pop3 imap lmtp
service auth {
  unix_listener /var/spool/postfix/private/dovecot-auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  unix_listener auth-userdb {
    group = vmail
    mode = 0600
    user = vmail
  }
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0600
    user = postfix
  }
}
service pop3 {
  executable = pop3 postlogin
  process_limit = 25
}
service postlogin {
  executable = script-login /etc/dovecot/postlogin.sh
  group = vmail
  user = vmail
}
service quota-status {
  client_limit = 1
  executable = quota-status -p postfix
  inet_listener {
    port = 12340
  }
}
service quota-warning {
  executable = /etc/dovecot/quota-warning.sh
  user = vmail
}
ssl = required
ssl_cert = </opt/xsc/ssl/certs/n6mef-gw.crt
ssl_key = </opt/xsc/ssl/private/n6mef-gw.key
ssl_protocols = !SSLv2 !SSLv3
userdb {
  args = username_format=%n /etc/dovecot/auth.d/%d/userdb.%s
  default_fields = home=/var/vmail/%d/%n
  driver = passwd-file
}
verbose_ssl = yes
protocol lmtp {
  postmaster_address = xxxxxxxxxxxxxxxxx
}
protocol imap {
  mail_max_userip_connections = 10
}
protocol pop3 {
  mail_max_userip_connections = 1
}
remote 192.168.7.0/24/24 {
  ssl = yes
}
remote 192.168.7.0/27/27 {
  ssl = no
}
$

- --Steffen Kaiser

RE: service-specific userdb affecting lmtp, quota-service

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