February 2020 - dovecot

Email Server Backup Strategy
by Esteban L 10 Feb '20

10 Feb '20

Hello, Was thinking it would be wise to backup my server, in case anything "bad" ever happened, so that I could quickly get up to speed. 1. clone the whole drive -- which might be the best to ensure I keep the whole system working. 2. But, what about, if I just wanted to backup my Email server components? Postfix - which I think is just config files, and Dovecot - I think there is a doveadm backup for doing such things. What do you guys do, recommend for backups?? Thanks -- https://www.little-beak.com "Doing what we can."

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postmaster_address parameter scope
by mabi 10 Feb '20

10 Feb '20

Hello, I was wondering when I define the following dovecot parameter: postmaster_address = postmaster(a)mydomain.com in my local.conf config file, does this parameter apply globally? I mean because it is not inside any {} curly braces does it also appliy to: protocol lmtp { ... } or do I need o explicitly define again my postmaster_address parameter inside protocol lmtp{} like this? protocol lmtp { postmaster_address = postmaster(a)mydomain.com } My very same question applies also for protocol lda {}... Regards, Mabi

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Reload Dovecot with thousands of domains.
by Victor 10 Feb '20

10 Feb '20

Hello!, I have a dovecot server configured with about 3k different domains. It worked without problems until SSL certificates has been installed. After increase available RAM and stabilizing the service my current problem is in renewals. Dovecot reload process consumes a lot of memory for every one certificate renewal. The server has enough memory to support reload in most cases, but if server has certain load, reload process throws down the service. I’m using lets encrypt certificates and this process is automated. Is there any way to reload just one domain/session?

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How to configure mail-filter plugin
by 刘莹莹 09 Feb '20

09 Feb '20

I config mail-filter plugin like https://wiki2.dovecot.org/Plugins/MailFilter describe， but error occurred mail-filter plugin config in dovecot.conf: mail_plugins = mail_filter plugin { mail_filter = mail-filter %u # %u = username given to the script as first mail_filter_out = mail-filter-out %u } service mail-filter { executable = script /usr/local/bin/mail-filter.sh user = vmail group = vmail unix_listener mail-filter { mode = 0666 user = vmail group = vmail } } service mail-filter-out { executable = script /usr/local/bin/mail-filter-out.sh user = vmail group = vmail unix_listener mail-filter-out { mode = 0666 user = vmail group = vmail } } vim /usr/local/bin/mail-filter.sh touch /tmp/testfile cat > /tmp/tempfile cat /tmp/tempfile vim /usr/local/bin/mail-filter-out.sh cat > /tmp/tempfile cat /tmp/tempfile then "dovecot-lda -f q1(a)a.com -d q1(a)a.com < test.eml" Error log: Feb 10 10:00:21 lda(q1(a)a.com)<18794><9ZN8EzW5QF5qSQAA0J78UA>: Debug: Namespace : Using permissions from /home/a.com/q1: mode=0700 gid=default Feb 10 10:00:21 lda(q1(a)a.com)<18794><9ZN8EzW5QF5qSQAA0J78UA>: Panic: file ostream.c: line 201 (o_stream_flush): assertion failed: (stream->stream_errno != 0) Feb 10 10:00:21 lda(q1(a)a.com)<18794><9ZN8EzW5QF5qSQAA0J78UA>: Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f049f4ef582] -> /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f049f4ef68e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe4b6e) [0x7f049f4f9b6e] -> /usr/lib64/dovecot/libdovecot.so.0(+0xe4bb1) [0x7f049f4f9bb1] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f049f4565e8] -> /usr/lib64/dovecot/libdovecot.so.0(+0x10bc47) [0x7f049f520c47] -> /usr/lib64/dovecot/libdovecot-storage.so.0(dbox_save_end+0x35) [0x7f049f8262f5] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mdbox_save_finish+0x39) [0x7f049f81af99] -> /usr/lib64/dovecot/libdovecot-lda.so.0(+0x3fbe) [0x7f049fb0efbe] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_save_finish+0x73) [0x7f049f801493] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mail_storage_copy+0xc9) [0x7f049f7f38e9] -> /usr/lib64/dovecot/libdovecot-storage.so.0(mdbox_copy+0x46) [0x7f049f81b816] -> /usr/lib64/dovecot/libdovecot-lda.so.0(+0x3daa) [0x7f049fb0edaa] -> /usr/lib64/dovecot/libdovecot-storage.so.0(+0x4e87c) [0x7f049f80187c] -> /usr/lib64/dovecot/libdovecot-lda.so.0(mail_deliver_save+0x1d7) [0x7f049fb103e7] -> /usr/lib64/dovecot/libdovecot-lda.so.0(mail_deliver+0x2fe) [0x7f049fb10bfe] -> /usr/libexec/dovecot/dovecot-lda(main+0x615) [0x55f636880045] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f049f073c05] -> /usr/libexec/dovecot/dovecot-lda(+0x3b7e) [0x55f636880b7e]

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noreplicate for some users
by mail＠backprod.de 08 Feb '20

08 Feb '20

Hi, I have set up the sync and it is working but I only would like to sync some users. Currently this does not seem to work. Version 2.3.9.2 Relevant Settings: File users: mail@domain.de:{SHA}hash:::t: passdb { driver = passwd-file args = username_format=%u /etc/dovecot/users } userdb { driver = passwd-file args = username_format=%u /etc/dovecot/users default_fields = uid=2222 gid=2222 home=/var/vmail/%d/%n userdb_noreplicate=t } After restart of dovecot I allways get all users with sudo doveadm replicator status "*" usernamepriority fast sync full sync success sync failed abuse(a)domain.net none 00:01:58 03:52:23 - y admin(a)domein.net none 00:01:58 03:52:23 - y abuse(a)domein.de none 00:01:58 07:51:00 - y What value needs to be set to get replication / no replication and to remove the users from the list? I have tried 0 / 1 / True / False / t / f / T / F but I don't see a change in behavior. Best regards Tim

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Re: mail_filter plugin: failed: EOF without input (Gedalya)
by 刘莹莹 08 Feb '20

08 Feb '20

I just modified mail-filter-out.sh like this: cat  mail-filter-out.sh   #!/bin/sh   USER=$1   cat > /tmp/tempfile   cat /tmp/tempfile cat  /tmp/tempfile This message is in MIME format. --nsmail-7bjyg3nr5o-7bmibqhut9 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: base64 PHA+Jm5ic3A7PC9wPjxwPiZuYnNwOzIxMjEyMTIxPC9wPjxwPiZuYnNwOzwv cD48cD4mbmJzcDs8L3A+PHA+Jm5ic3A7PC9wPjxwPiZuYnNwOzwvcD4tLS0t PGRpdiBpZD0iY3MyY19tYWlsX3NpZ2F0dXJlIj48L2Rpdj48cD48L3A+ --nsmail-7bjyg3nr5o-7bmibqhut9-- But the log appears:   Feb 08 19:14:18 lda(q1(a)a.com)<71012><m+U/KQqYPl5kFQEA0J78UA>: Panic: file ostream.c: line 201 (o_stream_flush): assertion failed: (stream->stream_errno != 0)   Feb 08 19:14:18 lda(q1(a)a.com)<71012><m+U/KQqYPl5kFQEA0J78UA>: Error: Raw backtrace: /opt/svn/nsmail-dovecot-2.3.9_4/src/lib- dovecot/.libs/libdovecot.so.0(backtrace_append+0x42) [0x7f60cc7cc5c2] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(backtrace_get+0x1e) [0x7f60cc7cc6ce] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(+0xe4bae) [0x7f60cc7d6bae] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(+0xe4bf1) [0x7f60cc7d6bf1] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(i_fatal+0) [0x7f60cc733628] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-dovecot/.libs/libdovecot.so.0(+0x10bc67) [0x7f60cc7fdc67] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(dbox_save_end+0x35) [0x7f60ccb032e5] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(mdbox_save_finish+0x39) [0x7f60ccaf7f99] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-lda/.libs/libdovecot-lda.so.0(+0x402e) [0x7f60ccdec02e] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(mailbox_save_finish+0x73) [0x7f60ccade4b3] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(mail_storage_copy+0xc9) [0x7f60ccad08f9] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(mdbox_copy+0x46) [0x7f60ccaf8816] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-lda/.libs/libdovecot-lda.so.0(+0x3e1a) [0x7f60ccdebe1a] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-storage/.libs/libdovecot-storage.so.0(+0x4e89c) [0x7f60ccade89c] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-lda/.libs/libdovecot-lda.so.0(mail_deliver_save+0x1d7) [0x7f60ccded457] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lib-lda/.libs/libdovecot-lda.so.0(mail_deliver+0x2fe) [0x7f60ccdedc6e] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lda/.libs/lt-dovecot-lda(main+0x644) [0x55e0340b3144] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f60cc350c05] -> /opt/svn/nsmail-dovecot-2.3.9_4/src/lda/.libs/lt-dovecot-lda(+0x3cb6) [0x55e0340b3cb6] ------------------ Original ------------------ From: "dovecot-request"<dovecot-request(a)dovecot.org>; Date: Sat, Feb 8, 2020 06:00 PM To: "dovecot"<dovecot(a)dovecot.org>; Subject: dovecot Digest, Vol 202, Issue 11 Send dovecot mailing list submissions to dovecot(a)dovecot.org To subscribe or unsubscribe via the World Wide Web, visit https://dovecot.org/mailman/listinfo/dovecot or, via email, send a message with subject or body 'help' to dovecot-request(a)dovecot.org You can reach the person managing the list at dovecot-owner(a)dovecot.org When replying, please edit your Subject line so it is more specific than "Re: Contents of dovecot digest..." Today's Topics:    1. Re: mail_filter plugin: failed: EOF without input (Gedalya) ---------------------------------------------------------------------- Message: 1 Date: Fri, 7 Feb 2020 23:48:28 +0800 From: Gedalya <gedalya(a)gedalya.net> To: dovecot(a)dovecot.org Cc: ??? <576709166(a)qq.com> Subject: Re: mail_filter plugin: failed: EOF without input Message-ID: <84fcd237-4290-2518-c4cf-486a049d9231(a)gedalya.net> Content-Type: text/plain; charset=gb18030 On 2/7/20 4:33 PM, ??? wrote: > > cat?mail-filter-out.sh > #!/bin/sh > cat > tempfile > cat ?mail-filter.sh > #!/bin/sh > > USER=$1 > cat > tempfile > > Some important Error logs? > Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Error: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input > Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Info: msgid=<77z2kkfmm1-7846bu3tx6(a)nsmail6.0>: save failed to INBOX: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input > Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Debug: auth-master: conn unix:/var/run/dovecot/auth-master (pid=10651,uid=0): Disconnected: Connection closed (fd=11) > Hi, Your scripts are reading all the available input and not producing any output. This way the email message is lost. You could add the line: cat tempfile or just replace "cat > tempfile" with "tee > tempfile" ------------------------------ Subject: Digest Footer _______________________________________________ dovecot mailing list dovecot(a)dovecot.org https://dovecot.org/mailman/listinfo/dovecot ------------------------------ End of dovecot Digest, Vol 202, Issue 11 ****************************************

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mail_filter plugin: failed: EOF without input
by 刘莹莹 07 Feb '20

07 Feb '20

some import  configure: plugin {   mail_filter = mail-filter %u # %u = username given to the script as first   mail_filter_out = mail-filter-out %u } service mail-filter {  executable = script /usr/local/bin/mail-filter.sh  user = dovecot  unix_listener mail-filter {    mode = 0600    user = vmail  } } service mail-filter-out {  executable = script /usr/local/bin/mail-filter-out.sh  user = dovecot  unix_listener mail-filter-out {    mode = 0600    user = vmail  } } protocol lda {     mail_plugins = quota sieve expire autocreate mail_filter     auth_socket_path = /var/run/dovecot/auth-master     rejection_subject = Rejected: %s     lda_mailbox_autocreate = yes     lda_mailbox_autosubscribe = yes     sendmail_path = /usr/sbin/sendmail } cat mail-filter-out.sh #!/bin/sh cat > tempfile cat  mail-filter.sh #!/bin/sh USER=$1 cat > tempfile Some important Error logs： Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Error: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Info: msgid=<77z2kkfmm1-7846bu3tx6(a)nsmail6.0>: save failed to INBOX: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Debug: auth-master: conn unix:/var/run/dovecot/auth-master (pid=10651,uid=0): Disconnected: Connection closed (fd=11)

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mail_filter plugin: failed: EOF without input
by 刘莹莹 07 Feb '20

07 Feb '20

some import  configure: plugin {   mail_filter = mail-filter %u # %u = username given to the script as first   mail_filter_out = mail-filter-out %u } service mail-filter {  executable = script /usr/local/bin/mail-filter.sh  user = dovecot  unix_listener mail-filter {    mode = 0600    user = vmail  } } service mail-filter-out {  executable = script /usr/local/bin/mail-filter-out.sh  user = dovecot  unix_listener mail-filter-out {    mode = 0600    user = vmail  } } protocol lda {     mail_plugins = quota sieve expire autocreate mail_filter     auth_socket_path = /var/run/dovecot/auth-master     rejection_subject = Rejected: %s     lda_mailbox_autocreate = yes     lda_mailbox_autosubscribe = yes     sendmail_path = /usr/sbin/sendmail } cat mail-filter-out.sh #!/bin/sh cat > tempfile cat  mail-filter.sh #!/bin/sh USER=$1 cat > tempfile Some important Error logs： Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Error: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Info: msgid=<77z2kkfmm1-7846bu3tx6(a)nsmail6.0>: save failed to INBOX: Mailbox INBOX: Saving mail: write(/home/a.com/q1/storage/m.1) failed: EOF without input Feb 07 15:49:19 lda(q1(a)a.com)<53648><rY6oIH8WPV6Q0QAA0J78UA>: Debug: auth-master: conn unix:/var/run/dovecot/auth-master (pid=10651,uid=0): Disconnected: Connection closed (fd=11)

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re: Dovecot - Upgrade Solr 7.7.2 to 8.4.1
by Francis Augusto Medeiros-Logeay 05 Feb '20

05 Feb '20

On 1/23/20 7:03 AM, Domenico Pastore wrote: >> So, with Dovecot is it possible to use Apache Solr 8.4? >> High RAM usage is the only problem? > I'm using 8.4.0 and it works flawlessly. I want to install fts-solr, but must tutorials are mentioning solr 7.7.0. Any heads-up on what one must pay attention to when installing 8.4.0? Do I need to update the version on the schemas, for example? Best, Francis

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auth-client via SSL?
by Heiko Schlittermann 05 Feb '20

05 Feb '20

Hello, does dovecot support tls-on-connect for AF INET based auth-client sockets? Rationale behind my question: Exim can use the Dovecot auth-client socket to delegate the SMTP-AUTH authentication to Dovecot. Currently Exim supports the AF UNIX only for this socket. Jeremy makes progress in extending this to use AF INET sockets too. While it works with clear text communication already, during testing I was to setup the auch-client socket as an TLS server (tls-on-connect). It doesn't seem to work as I'd expect. The socket still offers clear-text only. Here my configuration snippets regarding this socket ssl = yes ssl_cert = </etc/dovecot/private/server.pem ssl_key = </etc/dovecot/private/server.pem service auth { … unix_listener auth-client { group = _exim mode = 0660 } inet_listener auth-client { name = exim port = 4711 ssl = yes } } SSL connections to :993 work as expected. Best regards from Dresden/Germany Viele Grüße aus Dresden Heiko Schlittermann -- SCHLITTERMANN.de ---------------------------- internet & unix support - Heiko Schlittermann, Dipl.-Ing. (TU) - {fon,fax}: +49.351.802998{1,3} - gnupg encrypted messages are welcome --------------- key ID: F69376CE - ! key id 7CBF764A and 972EAC9F are revoked since 2015-01 ------------ -

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