search for: zlib_save

We'd like to be able to activate zlib_save per-user or per-mailbox, but it seems to be global, all or nothing. Search of this list revealed a comment from Timo in 2012: http://www.dovecot.org/list/dovecot/2012-March/064909.html where he was thinking that compression per-namespace would be a worthy feature. Was that done? I'm in th...

ok, I did install zstd (zstd command line interface 64-bits v1.4.4, by Yann Collet) reconfigured & compiled dovecot 2.3.10.1 again with option : with-zstd changed the configuration file to : zlib_save = zstd and restarted dovecot - now I have following log file errors : Aug 28 16:17:39 lxc-imap dovecot: imap(rnowotny)<237930><H1kft/CtENRUclcc>: Error: zlib_save: Unknown handler: zstd Aug 28 16:17:44 lxc-imap dovecot: imap(rprager)<237939><p5hst/Ct8evAqKhu>: Error:...

Hi, the zlib_save question reminds me of a wish: I think it's not possible to set zlib_save parameter per namespace (or even mailbox). Per namespace would be something for the wish list to get rid of the cron job method to compress archival mailboxes. And maybe an option to add a "Z" flag to compressed...

...y like a solution here as I tried all I could find on the wiki or mail archives I am now running dovecot 2.2.12 Compression works fine for new mails, so zlib works Mails are currently stored using dbox So I tried for testing dsync -D -v mirror -u user -m Archives dbox:~/temp dsync -o "plugin/zlib_save=xz" -D -v mirror -u user -m Archives dbox:~/temp dsync -o "plugin/zlib_save=" -D -v mirror -u user -m Archives dbox:~/temp dsync -o "plugin/zlib_save=" -D -v mirror -u user -m Archives maildir:~/temp dsync -o "plugin/zlib_save=xz" -D -v mirror -u user -m Archives...

This is in follow-up to https://dovecot.org/pipermail/dovecot/2017-December/110443.html I had mail_plugins = "zlib", but zlib_save wasn't set (my mailboxes were not compressed). It seems that when the zlib plugin is enabled, but zlib_save isn't set, the zlib plugin aborts on a regular basis---on a single-user system, I was seeing it about 150 times a day. Panic: file ostream-zlib.c: line 36 (o_stream_zlib_close...

On 10/30/15 3:06 PM, Robert L Mathews wrote: > I've noticed that maildir IMAP COPY commands can generate invalid > dovecot.index entries when all seven of the following are true: As a followup to my own post, I believe I've tracked this problem down to this code at lines 119-124 of /src/plugins/zlib/zlib-plugin.c: /* don't uncompress input when we are reading a mail that

..., Robert Nowotny <rnowotny at rotek.at> wrote: > > > ok, I did install zstd (zstd command line interface 64-bits v1.4.4, by Yann Collet) > > reconfigured & compiled dovecot 2.3.10.1 again with option : with-zstd > > changed the configuration file to : > > zlib_save = zstd > > and restarted dovecot - > > now I have following log file errors : > > Aug 28 16:17:39 lxc-imap dovecot: imap(rnowotny)<237930><H1kft/CtENRUclcc>: Error: zlib_save: Unknown handler: zstd > Aug 28 16:17:44 lxc-imap dovecot: imap(rprager)<237939>...

I've noticed that maildir IMAP COPY commands can generate invalid dovecot.index entries when all seven of the following are true: - The zlib plugin is enabled; - The zlib_save/zlib_save_level options are NOT enabled; - The source message being copied is compressed; - The mail_log plugin is logging "copy" events; - The mail_log_fields setting includes at least one message header; - The destination mailbox folder has an index file that is recording the logged hea...

..."interaction" of attachment_dir option and zlib plugin. If you use both, you most likely are affected, too, except you only use zlib plugin for reading previously compressed stored mails. That's also the workaround we use now: zlib plugin only enabled in mail_plugins but no plugin/zlib_save set. The bug occurs on very specific mails. Due to privacy reasons I could not provide sample mails here. Storing such mails seems to trigger the bug reproducible. I attached a very minimal doveconf -n config, that can be used to trigger the bug. If one of the developers is interested, I...

...On June 10, 2017 at 11:01 AM Peter West <lists at pbw.id.au> wrote: >> >> >> Thanks for that Aki. >> >> Follow-up question. I tried to initiate compression by adding >> >> mail_plugins = $mail_plugins zlib >> >> plugin { >> zlib_save_level = 6 >> zlib_save = xz >> } >> >> >> to dovecot.conf. I restarted dovecot and sent one message to the server, and one message from the server. Neither was compressed. I changed the save type to >> >> zlib_save = bz2 >> >> and r...

Thanks for that Aki. Follow-up question. I tried to initiate compression by adding mail_plugins = $mail_plugins zlib plugin { zlib_save_level = 6 zlib_save = xz } to dovecot.conf. I restarted dovecot and sent one message to the server, and one message from the server. Neither was compressed. I changed the save type to zlib_save = bz2 and repeated. This time the message received (in /var/vmail/<host>/<usernam...

..."interaction" of attachment_dir option and zlib plugin. If you use both, you most likely are affected, too, except you only use zlib plugin for reading previously compressed stored mails. That's also the workaround we use now: zlib plugin only enabled in mail_plugins but no plugin/zlib_save set. The bug occurs on very specific mails. Due to privacy reasons I could not provide sample mails here. Storing such mails seems to trigger the bug reproducible. I attached a very minimal doveconf -n config, that can be used to trigger the bug. If one of the developers is interested, I can...

...ot; of attachment_dir > option and zlib plugin. If you use both, you most likely are affected, > too, except you only use zlib plugin for reading previously compressed > stored mails. That's also the workaround we use now: zlib plugin only > enabled in mail_plugins but no plugin/zlib_save set. > > The bug occurs on very specific mails. Due to privacy reasons I could > not provide sample mails here. Storing such mails seems to trigger the > bug reproducible. > > > I attached a very minimal doveconf -n config, that can be used to > trigger the bug. If...

...>>> >>>> >>>> Thanks for that Aki. >>>> >>>> Follow-up question. I tried to initiate compression by adding >>>> >>>> mail_plugins = $mail_plugins zlib >>>> >>>> plugin { >>>> zlib_save_level = 6 >>>> zlib_save = xz >>>> } >>>> >>>> >>>> to dovecot.conf. I restarted dovecot and sent one message to the server, and one message from the server. Neither was compressed. I changed the save type to >>>> >&...

I enabled zlib compression, so new mails are saved compressed. Now I want to convert the old mails to gzip with the find and gzip command, but now I don't know which files are already gzip compressed by dovecot. Shouldn't zlib_save itself add Z to the Maildir flags? As suggested in the compress guide on http://wiki2.dovecot.org/Plugins/Zlib ? -- Tom

...nf.d/10-mail.conf: # Space separated list of plugins to load for all services. Plugins specific to IMAP, LDA, etc. are added to this list in their own .conf files. mail_plugins = zlib acl fts fts_solr /etc/dovecot/conf.d/90-plugin.conf: # Enable these only if you want compression while saving: zlib_save_level = 9 # 1..9 zlib_save = xz # gz or bz2 or xy Now I tried to convert my mailboxes - but somehow, something goes wrong: root at SERVER:/# dovecot --version 2.2.9 root at SERVER:/# dsync mirror mdbox:/srv/converted_vmail/ doveadm(root): Error: zlib_save: Support not compiled in for handler:...

Hey there, i need some help with an administrativ dovecot question. I run a dovecot 2.2.33 ubuntu server with mdbox and "zlib_save = gz zlib_save_level = 6". Now i want to fetch the mailheader from some mails via doveadm fetch -u <user> hdr uid <uid>. The only thing what i receive is some binary stuff. Is there a way, i can tell the dovemadm fetch command, that he should deflate the output for me? Yours si...

...mail_plugins = zlib } protocol lda { postmaster_address = postmaster at monsternett.no mail_plugins = sieve zlib mail_plugin_dir = /usr/lib/dovecot/modules/lda sieve_global_dir = /etc/dovecot/sieve/ sieve_global_path = /etc/dovecot/sieve/default.sieve } plugin { zlib_save_level = 6 zlib_save = gz fts = squat sieve = ~/dovecot.sieve sieve_dir = ~/ } -- Helge Milde, 69701808 www.monsternett.no

...ader -reject sieve_filter_bin_dir = /usr/local/bin/ sieve_filter_input_eol = lf sieve_global_dir = /etc/dovecot/sieve/ sieve_max_redirects = 25 sieve_pipe_bin_dir = /usr/local/bin/ sieve_pipe_input_eol = lf sieve_plugins = sieve_extprograms sieve_redirect_envelope_from = recipient zlib_save = gz zlib_save_level = 6 } protocols = imap pop3 sieve service auth-worker { idle_kill = 1 mins } service auth { idle_kill = 1 mins unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = root } service imap-login { executable =...

Hello We are using Dovecot 2.0.17 with mdbox+zlib and we are evaluating alternative storage. These are the relevant settings mdbox_rotate_interval = 1d mdbox_rotate_size=60m [...] zlib_save_level = 9 # 1..9 zlib_save = gz # or bz2 [...] zlib plugin enabled in dovecot-lda These are my questions: 1? General mdbox question. We are happy usings zlib_save, but we would like to try bzip2 compression. Can we change zlib to bzlib without problems? In other words, can we mix & match...