I sent the following email a couple of months ago, but didn't get any response, so I thought I'd try again. Would anyone be able to confirm for me which files and folders I need to move in order to resolve this situation with the home vs. maildir issue?


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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Sunday, June 28, 2020 6:43 AM, David White <dmwhite823@protonmail.com> wrote:

I have Dovecot 2.3.7.2 on Ubuntu 20.04.
I just migrated the server from CentOS 8, and only migrated to the CentOS 8 machine a few months ago off of CentOS 7.
I am pasting `doveconf -n` at the bottom of this email.

Everything is working.
However, I'm trying to clean up warnings in the logs, and just discovered that I'm not managing home directories properly.
(c/f https://wiki.dovecot.org/VirtualUsers/Home)

This is in the logs:
Jun 28 06:09:50 mail.example.com dovecot: imap(email@example.com)<3786><fICEJCKpbfatQHg1>: Error: stat(/var/vmail/example.com/email@example.com/.dovecot.sieve/tmp) failed: Not a directory

Can I please get a sanity check?
To resolve, I've come up with a bash loop to create a home folder, and fix the existing structure for each mailbox on the system. 
I ran this for 1 of the domains on the system.

for i in */ ; do mv "$i" mail; mkdir "$i"; mv mail "$i"; mv "$i"/.dovecot* "$i"; done

Then, I would simply edit /etc/dovecot/conf.d/10-mail.conf so that it looks like this:
mail_home = /var/vmail/%d/%u
mail_location = maildir:/var/vmail/%d/%u/mail

To confirm, should all of the 'hidden' dovecot files be moved to the user's new home folder like I'm trying to do in the above script?
Or are there other files that I will need to move?

After running that loop above on a test server (don't worry, I would never do this in production without testing), one of the mailbox's home folder on the server looks like this:

total 56
drwxr-xr-x   4 vmail vmail  4096 Jun 28 06:19 .
drwx------   6 vmail vmail  4096 Jun 28 06:09 ..
-rw-------   1 vmail vmail    54 Jul  4  2019 .dovecot.lda-dupes
lrwxrwxrwx   1 vmail vmail    21 May 26  2016 .dovecot.sieve -> sieve/roundcube.sieve
-rw-------   1 vmail vmail     0 Oct 17  2016 .dovecot.sieve.log
-rw-------   1 vmail vmail   218 Jul  6  2019 .dovecot.svbin
drwx------ 277 vmail vmail 32768 Jun 28 06:19 mail
drwx------   3 vmail vmail  4096 Feb  2 17:31 sieve

... and connecting to that mailbox over Thunderbird seems to be working fine.
But I want to make sure I'm not missing anything.

Here is my doveconf -n, with identifying information snipped out:

root@mail:# doveconf -n
# 2.3.7.2 (3c910f64b): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.7.2 ()
# OS: Linux 5.4.0-39-generic x86_64 Ubuntu 20.04 LTS ext4
# Hostname: {snip}
auth_mechanisms = plain login
mail_location = maildir:/var/vmail/%d/%u
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext
namespace inbox {
  inbox = yes
  location =
  mailbox Drafts {
    auto = subscribe
    special_use = \Drafts
  }
  mailbox Junk {
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    special_use = \Sent
  }
  mailbox Spam {
    auto = create
    special_use = \Junk
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix =
}
passdb {
  args = /etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
plugin {
  sieve = file:~/sieve;active=~/.dovecot.sieve
}
protocols = imap pop3 lmtp sieve
service auth-worker {
  user = $default_internal_user
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0666
    user = postfix
  }
  unix_listener auth-userdb {
    group = postfix
    mode = 0666
    user = vmail
  }
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0666
    user = postfix
  }
}
ssl = required
ssl_ca = </etc/ssl/certs/snip.ca-bundle
ssl_cert = </etc/ssl/certs/snip.crt
ssl_cipher_list = ALL:!LOW:!SSLv3:!EXP:!aNULL:!MD5
ssl_key = # hidden, use -P to show it
userdb {
  args = uid=vmail gid=vmail home=/var/vmail/%d/%u
  driver = static
}



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