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...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: zlib_save: Unknown handler: zstd Aug 28 16:17:44 lxc-imap dovecot: imap(rprager)<237940><Vp5st/Ct8uvAqKhu>: E...

zstd support was added in v2.3.11 (not v2.3.12 like I mistakenly tried to say in the earlier mail). > On 28. Aug 2020, at 16.36, 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...

On 8. Sep 2020, at 12.35, Robert Nowotny <rnowotny1966 at gmail.com> wrote: Dear Aki, I switched to "gz" now, since "zstd" also gave some errors on writing to files. What kind of errors? Probably this? : Panic: file ostream.c: line 287 (o_stream_sendv_int): assertion failed: (!stream->blocking) can be...

On 10. Sep 2020, at 14.07, Robert Nowotny <rnowotny1966 at gmail.com> wrote: > > > On 9. Sep 2020, at 11.14, Robert Nowotny <rnowotny1966 at gmail.com <mailto:rnowotny1966 at gmail.com>> wrote: >> >>>> Sep 3 08:33:25 lxc-imap dovecot: imap(mpaul)<48684><2/9E5mKuAezAqKjk>: Error:...

On 9. Sep 2020, at 11.14, Robert Nowotny <rnowotny1966 at gmail.com> wrote: Sep 3 08:33:25 lxc-imap dovecot: imap(mpaul)<48684><2/9E5mKuAezAqKjk>: Error: Mailbox Sent: UID=2171: read(zlib(/home/vmail/virtualmailboxes/mpaul/storage/m.119)) failed: read(/home/vmail/virtualmailboxes/mpaul/storage/m.119) failed: Broken pi...

...ng 2.3.11.3, those broken-pipe errors appear again. (on different, new files) so for sure there is something broken with zlib. I will go back to2.3.10.1 now. attached is the configuration file, though it did not change between 2.3.10.1 and 2.3.11.3 Robert Am 26.08.2020 um 09:42 schrieb Robert Nowotny: > I had 4 broken mdbox files for 4 different users. > After deleting them, dovecot re-indexed, now everything is ok again. > > I can try to update tonight again to 2.3.11.3 and see if some broken > files will appear again tomorrow. > > Am 25.08.2020 um 14:51 schrieb Aki Tuomi...

...ap(cpotzinger)<58392><xJLx12Oum+zAqKiU>: Error: Mailbox Sent: UID=29534: read(zlib(/home/vmail/virtualmailboxes/cpotzinger/storage/m.4703)) failed: read(/home/vmail/virtualmailboxes/cpotzinger/storage/m.4703) failed: Broken pipe (FETCH BODY[]) ... Am 26.08.2020 um 09:42 schrieb Robert Nowotny: I had 4 broken mdbox files for 4 different users. After deleting them, dovecot re-indexed, now everything is ok again. I can try to update tonight again to 2.3.11.3 and see if some broken files will appear again tomorrow. Am 25.08.2020 um 14:51 schrieb Aki Tuomi: On 25/08/2020 14:35 Robert Now...

> On 25/08/2020 14:35 Robert Nowotny <rnowotny at rotek.at> wrote: > > > I get ZLIB Errors after dovecot upgrade from 2.3.10.1 to 2.3.11.3 > > > Aug 21 15:27:34 lxc-imap dovecot: imap(acsida)<63870><jZk...>: Error: Mailbox Sent: UID=40826: read(zlib(/home/vmail/virtualmailboxes/acsida/storage/m...

...ad 4 broken mdbox files for 4 different users. After deleting them, dovecot re-indexed, now everything is ok again. I can try to update tonight again to 2.3.11.3 and see if some broken files will appear again tomorrow. Am 25.08.2020 um 14:51 schrieb Aki Tuomi: >> On 25/08/2020 14:35 Robert Nowotny <rnowotny at rotek.at> wrote: >> >> >> I get ZLIB Errors after dovecot upgrade from 2.3.10.1 to 2.3.11.3 >> >> >> Aug 21 15:27:34 lxc-imap dovecot: imap(acsida)<63870><jZk...>: Error: Mailbox Sent: UID=40826: read(zlib(/home/vmail/virtualmailb...

On 28. Aug 2020, at 12.10, Robert Nowotny <rnowotny at rotek.at> wrote: > > unfortunately after re-installing 2.3.11.3, those broken-pipe errors appear again. (on different, new files) > so for sure there is something broken with zlib. > I will go back to 2.3.10.1 now. > attached is the configuration file, though it...

compression : xz, Level 6 here some compression rates I experienced : Diskspace usage : user1: uncompressed : 2.3GB --> compressed 1 GB user2: uncompressed : 6.2GB --> compressed 3.9 GB just for your reference Ing. Robert Nowotny Rotek GmbH Vienna/Austria

I get ZLIB Errors after dovecot upgrade from 2.3.10.1 to 2.3.11.3 Thunderbird reports some error when try to save/open a bigger attachment. Aug 21 15:27:34 lxc-imap dovecot: imap(acsida)<63870><jZk...>: Error: Mailbox Sent: UID=40826: read(zlib(/home/vmail/virtualmailboxes/acsida/storage/m.2409)) failed: read(/home/vmail/virtualmailboxes/acsida/storage/m.2409) failed: Broken

I've tried setting up multiple SSL-Certificates (using letsencrypt) for dovecot on my ubuntu machine. Used dovecot version is 2.2.18. Regarding to official docs this should be working. My test-client (Thunderbird on linux) has been mentioned to be working fine with SNI here: https://wiki.dovecot.org/SSL/SNIClientSupport https://wiki.dovecot.org/SSL/DovecotConfiguration#line-89 >

...potzinger)<58392><xJLx12Oum+zAqKiU>: Error: Mailbox Sent: UID=29534: read(zlib(/home/vmail/virtualmailboxes/cpotzinger/storage/m.4703)) failed: read(/home/vmail/virtualmailboxes/cpotzinger/storage/m.4703) failed: Broken pipe (FETCH BODY[]) ... Am 26.08.2020 um 09:42 schrieb Robert Nowotny: > I had 4 broken mdbox files for 4 different users. > After deleting them, dovecot re-indexed, now everything is ok again. > > I can try to update tonight again to 2.3.11.3 and see if some broken > files will appear again tomorrow. > > Am 25.08.2020 um 14:51 schrieb Aki Tuomi...

> > On 8. Sep 2020, at 12.35, Robert Nowotny <rnowotny1966 at gmail.com <mailto:rnowotny1966 at gmail.com>> wrote: >> >> >> Dear Aki, >> I switched to "gz" now, since "zstd" also gave some errors on writing to files. > > What kind of errors? Probably this? : Panic: file ostrea...

when syncing Mailboxes with IMAPSYNC, using xz compression the dbox file gets corrupted. the same configuration was working ok on low load with xz compression. Dovecot Version 2.2.12 Linux Mint 16 EXT4 Filesystem another dovecot user already reported the same problem on the mailinglist, using dsync. That user switched to bz2 compression what worked for him. the answer was : > are you on

On 8. Sep 2020, at 12.35, Robert Nowotny <rnowotny1966 at gmail.com> wrote: > > > Dear Aki, > I switched to "gz" now, since "zstd" also gave some errors on writing to files. What kind of errors? > I dont know if "xz" compression or "zstd" shreddered my MDBOX Files, but I los...

I get ZLIB Errors after dovecot upgrade from 2.3.10.1 to 2.3.11.3 Thunderbird reports some error when try to save/open a bigger attachment. Aug 21 15:27:34 lxc-imap dovecot: imap(acsida)<63870><jZk...>: Error: Mailbox Sent: UID=40826: read(zlib(/home/vmail/virtualmailboxes/acsida/storage/m.2409)) failed: read(/home/vmail/virtualmailboxes/acsida/storage/m.2409) failed: Broken

I get ZLIB Errors after dovecot upgrade from 2.3.10.1 to 2.3.11.3 Aug 21 15:27:34 lxc-imap dovecot: imap(acsida)<63870><jZk...>: Error: Mailbox Sent: UID=40826: read(zlib(/home/vmail/virtualmailboxes/acsida/storage/m.2409)) failed: read(/home/vmail/virtualmailboxes/acsida/storage/m.2409) failed: Broken pipe (FETCH BODY[]).... many of those entries.... after installing 2.3.10.1

when syncing Mailboxes with IMAPSYNC, using xz compression the dbox file gets corrupted. the same configuration was working ok on low load with xz compression. Dovecot Version 2.2.12 Linux Mint 16 EXT4 Filesystem another dovecot user already reported the same problem on the mailinglist, using dsync. That user switched to bz2 compression what worked for him. the answer was : > are you on