Hi Don,
my problem seems to be related. I have the same kind of messages in my logs.
I am on an Ubuntu 20.04.6 LTS v-server. Due to end of life, I build the
services (facing to world) myself to fix CVEs. Apache2 and Postfix was not that
difficulty - but Dovecot is. Luckily Dovecot 2.3.7.2 has no critical CVEs, yet!
(At the moment I can't upgrade to any newer version of Ubuntu, that is still
supported :/)
I built dovecot 2.4.1 from source with following config line:
CPPFLAGS="-I/usr/local/include/openssl" LDFLAGS="-L/usr/local/lib64"
./configure --with-mysql --with-sql=yes --without-apparmor --with-systemd=yes
--with-zlib --with-rundir=/run/dovecot-2.4 --with-statedir=/var/lib/dovecot-2.4
make
make install
It will install in parallel to 2.3.7.2 - with two systemd scripts I can start
both version. For starting 2.4.1 I am using the default script that is
installed at /lib/systemd/system/dovecot.conf
Install path is /usr/local
My config (reduced to minimum):
--- start ---
dovecot_config_version = 2.4.1
auth_allow_weak_schemes = yes
auth_mechanisms = plain login
auth_verbose = yes
auth_verbose_passwords = plain
debug_log_path = /var/log/dovecot-debug.log
dovecot_storage_version = 2.3.7.2
first_valid_uid = 155
info_log_path = /var/log/dovecot-info.log
last_valid_uid = 155
lda_mailbox_autocreate = yes
log_debug = category=config
log_path = /var/log/dovecot.log
mail_debug = yes
mail_driver = maildir
mail_gid = mail
mail_path = ~/Maildir
mail_uid = vmail
passdb_default_password_scheme = MD5-CRYPT
protocols = imap lmtp
sql_driver = mysql
mysql localhost {
dbname = postfixadmin
password =
user = postfixadmin
}
userdb sql {
query = <something>
}
passdb sql {
query = <something>
}
service auth {
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0600
user = postfix
}
unix_listener /var/spool/postfix/private/dovecot-auth {
group = postfix
mode = 0660
user = postfix
}
unix_listener auth-userdb {
group = mail
mode = 0600
user = vmail
}
}
service imap-login {
inet_listener imaps {
port = 993
ssl = yes
}
}
service lmtp {
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0666
user = postfix
}
}
ssl_server {
cert_file = file.pem
key_file = file.key
}
protocol imap {
imap_client_workarounds = delay-newmail
mail_max_userip_connections = 10
}
protocol lmtp {
postmaster_address = postmaster@something
}
protocol lda {
deliver_log_format = msgid=:%{mechanism} %$
info_log_path = /var/log/dovecot-lda.log
log_path = /var/log/dovecot-lda-errors.log
mail_plugins = sieve
postmaster_address = postmaster
quota_full_tempfail = yes
rejection_reason = Your message to <> was automatically rejected:%{user |
username}%{remote_ip}
}
--- end ---
When starting my mail client (Evolution), the connect to imaps works pretty
fine. So authentication via mysql / postfixadmin is ok. But I just see the
empty folders: Inbox, Trash, "Unwanted". With 2.3.7.2 I can see all folders
with content.
Message in Debug Log: Sep 28 20:50:35 imap(supertest)<24384><zRuC>: Debug:
open(/proc/self/io) failed: Permission denied (euid=155(vmail) egid=8(mail)
missing +r perm: /proc/self/io)
This "error" message does not make sense. sudo -u vmail,dovecot,dovenull cat
/proc/self/io works pretty fine.
The mails are stored at /var/vmail/domain/supertest (for account "supertest"):
drwx------ 9 vmail mail 4096 Sep 28 18:37 .
drwxr-x--- 5 vmail mail 4096 Mai 24 13:37 ..
drwx------ 2 vmail mail 4096 Jun 2 20:06 cur
-rw------- 1 vmail mail 1224 Mai 28 01:31 dovecot.index
-rw------- 1 vmail mail 16980 Sep 27 23:27 dovecot.index.cache
-rw------- 1 vmail mail 29836 Jun 2 20:06 dovecot.index.log
-rw------- 1 vmail mail 664 Mai 31 23:15 dovecot.list.index
-rw------- 1 vmail mail 1564 Sep 28 18:37 dovecot.list.index.log
-rw------- 1 vmail mail 72 Okt 18 2022 dovecot.mailbox.log
-rw------- 1 vmail mail 48 Sep 14 18:50 dovecot-quota
-rw------- 1 vmail mail 3110 Jun 2 20:06 dovecot-uidlist
-rw------- 1 vmail mail 8 Okt 18 2022 dovecot-uidvalidity
-r-------- 1 vmail mail 0 Mär 16 2022 dovecot-uidvalidity.62313183
drwx------ 5 vmail mail 4096 Sep 28 18:37 .Gesendet
drwx------ 5 vmail mail 4096 Sep 28 16:10 Maildir
drwx------ 2 vmail mail 4096 Jun 2 20:06 new
drwx------ 5 vmail mail 4096 Okt 18 2022 .Sent
-rw------- 1 vmail mail 25 Okt 18 2022 subscriptions
drwx------ 2 vmail mail 4096 Sep 23 11:17 tmp
drwx------ 5 vmail mail 4096 Okt 18 2022 .Trash
Variable "home" is correctly set over DB query.
I have, without success, tried following:
* chmod go+r supertest
* experimenting with acl
* adding namespace / inbox
Any "fresh" ideas for me?
Oldguy
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