Hi,
I've just migrated our mail server from Debian 12 to 13. With this,
dovecot was upgraded to v2.4. I was previously aware of the new config
schema, but it seems the documentation wasn't enough to make the
transition that smooth. I'm encountering several issues where I'd need
some assistance:
I have issues with message sizes not fitting:
Jan 22 19:16:04 imap(user)<82612><thWtCP5I7OuGPXzg>: Error: Mailbox INBOX:
UID 31518: Deleting corrupted cache record: Broken virtual size in mailbox
INBOX:
read(/maildirs/user/Maildir/cur/1769006028.M895618P2636851.mail,S=21001,W=21465:2,S):
FETCH BODY[] got too little data: 11619 vs 21465
Jan 22 19:16:05 imap(user)<82614><Oy+wCP5I/OuGPXzg>: Error: Mailbox INBOX:
UID 31517: Deleting corrupted cache record: Broken physical size in
mailbox INBOX:
read(/maildirs/user/Maildir/cur/1769002524.M378861P2632916.mail,S=229241,W=232394:2,S)
failed: Cached message size larger than expected (229241 > 149967,
box=INBOX, UID=31517)
I have set maildir_broken_filename_sizes = yes in 10-mail.conf, which I
expected to prevent this, but is seemingly doesn't really. Do I have to
purge some cache? Also something similar happens when sending mail:
Jan 22 19:26:53
indexer-worker(user)<88639><pobvLv5IOtqGPXzg:tyFvLuZrcmk/WgEApdA/4w>:
Error: fts-flatcurve: fts-flatcurve(Sent): Could not write message data:
uid=1075; InvalidArgumentError: Term too long (> 245):
B)l**5y**h**^H1gg^W^**^O**o**]s**qE**^Elkhv/**g^Cok3**)**{^Ft^Cm**b**lw,**1l^B**^[u^Mb*\**u**b**n[f**j**w;**r**y7+**e*qu**^L^\**x^L**f**(`**xfkw**<**a3**x5rv^G^L)**#zhh^B_7w/ztl}^Q.**1**5a**/**q**^M**^C^_^**"^Dd**j_**o**"x^Dya*_^_n
Jan 22 19:26:53
indexer-worker(user)<88639><pobvLv5IOtqGPXzg:tyFvLuZrcmk/WgEApdA/4w>:
Error: Mailbox Sent: UID 1077: Deleting corrupted cache record: Broken
physical size in mailbox Sent:
read(/maildirs/user/Maildir/.Sent/cur/1589821415.M621487P6382.mail,S=8285,W=8432:2,Sa)
failed: Cached message size larger than expected (8285 > 3115, box=Sent,
UID=1077)
Jan 22 19:26:53
indexer-worker(user)<88639><pobvLv5IOtqGPXzg:tyFvLuZrcmk/WgEApdA/4w>:
Error: Mailbox Sent: UID 1077:
read(/maildirs/user/Maildir/.Sent/cur/1589821415.M621487P6382.mail,S=8285,W=8432:2,Sa)
failed: Cached message size larger than expected (8285 > 3115, box=Sent,
UID=1077)
Jan 22 19:26:53
indexer-worker(user)<88639><pobvLv5IOtqGPXzg:tyFvLuZrcmk/WgEApdA/4w>:
Error: Mailbox Sent: Precache for UID=1077 failed:
read(/maildirs/user/Maildir/.Sent/cur/1589821415.M621487P6382.mail,S=8285,W=8432:2,Sa)
failed: Cached message size larger than expected (8285 > 3115, box=Sent,
UID=1077) (attempted to index 871 messages between UIDs 179..1077)
And while the logs don't seem to mention it, I guess that's also
interfering with receiving mails, as postfix confirms getting the mail
(though it complains about not being able to write to
/var/log/dovecot/error.log, but I also don't know why it would need that
so I'm currently not looking into it), but it dovecot never says it
received it and also no new file is created in
/maildirs/user/Maildir/cur/.
I have issues with some plugins. I have in 20-imap.conf and 15-lda.conf
inside mail_plugins "zlib = yes", but no zlib-related module can be
found. Is there a different way to enable mail compression and
decompression or did Debian just miss to enable that at compilation?
I also have issues with the sieve plugin. I had it enabled in 15-lda.conf,
20-managesieve.conf, 20-imap.conf and 20-lmtp.conf. As I understand I
don't need all of them. At least if I do I get a weird issue (Error:
Couldn't load required plugin
/usr/lib/dovecot/modules/lib90_sieve_plugin.so: dlopen() failed:
/usr/lib/dovecot/modules/lib90_sieve_plugin.so: undefined symbol:
mail_deliver_ctx_get_log_var_expand_table). So where exactly do I enable
it? Also, I'd need help modifying something I put into 90-plugins.conf:
plugin {
# From elsewhere to Junk folder
imapsieve_mailbox1_name = Junk
imapsieve_mailbox1_causes = COPY
imapsieve_mailbox1_before =
[1]file:/etc/dovecot/sieve/global/learn-spam.sieve
# From Junk folder to elsewhere
imapsieve_mailbox2_name = *
imapsieve_mailbox2_from = Junk
imapsieve_mailbox2_causes = COPY
imapsieve_mailbox2_before =
[2]file:/etc/dovecot/sieve/global/learn-ham.sieve
sieve_pipe_bin_dir = /etc/dovecot/sieve/global
sieve_global_extensions = +vnd.dovecot.pipe
+vnd.dovecot.environment
sieve_plugins = sieve_imapsieve sieve_extprograms
# Compression
zlib_save_level = 4 # 1..9
zlib_save = zstd or bz2, If this config entry missing, compression
is disabled.
}
but when I do it that way I get the error "doveconf: Fatal: Error in
configuration file /etc/dovecot/conf.d/90-plugin.conf line 9: Unknown
section name: plugin".
I do have this in 90-sieve.conf:
mailbox Spam {
# From elsewhere to Spam folder
sieve_script report-spam {
type = before
cause = copy
path = /etc/dovecot/sieve/global/learn-spam.sieve
}
}
# From Spam folder to elsewhere
imapsieve_from Spam {
sieve_script report-ham {
type = before
cause = copy
path = /etc/dovecot/sieve/global/learn-ham.sieve
}
}
(currently commented out), but I have no idea how exactly I fold the old
config into the new one. Most of the config is already migrated, but how
do I make sure that learn-spam-sieve is only running when something is
moved to Junk, while learn-ham.sieve is executed when something is being
moved from Junk, except when it's moved into Trash? And what exactly do I
do with the last 5 configs?
Sorry for the long message, but the new config scheme is a bit too
different for me to understand it right away.
Best regards
Richard
References
Visible links
1. file://etc/dovecot/sieve/global/learn-spam.sieve
2. file://etc/dovecot/sieve/global/learn-ham.sieve
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