- dovecot - dovecot.org

chown(/var/dovecot/login/ipc-proxy
by Marc Roos 22 Nov '19

22 Nov '19

Can we remove/change this in the source? So we do not have to add the CAP_CHOWN with containers. chown(/var/dovecot/login/ipc-proxy) When run as root this has user dovenull, maybe this can be resolved by using a group dovenull? bash-5.0# ls -arlt total 4 srw-rw-rw- 1 root root 0 Nov 21 22:27 pop3 srw-rw-rw- 1 root root 0 Nov 21 22:27 login srw------- 1 dovenull root 0 Nov 21 22:27 ipc-proxy srw-rw-rw- 1 root root 0 Nov 21 22:27 imap drwxr-xr-x 1 dovecot dovecot 4096 Nov 21 22:27 .. drwxr-x--- 1 root dovenull 60 Nov 21 22:27 . Maybe this would work srw-rw---- 1 root dovenull 0 Nov 21 22:27 ipc-proxy

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Virtual folder auto creation
by sergio 22 Nov '19

22 Nov '19

After switching on Virtual Plugin and configuring it as specified on https://doc.dovecot.org/configuration_manual/virtual_plugin/ the virtual folder is created for each user. Is it possible do not creater virtual folder automatically, only manually, for specific users? lda_mailbox_autocreate set to yes, but hope it's not related. -- sergio.

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Lost quota, maildirsize with value S0
by grupodecorreo10 21 Nov '19

21 Nov '19

Hi,We have installed dovecot 2.2.22. we have servers as director dovecot and servers as dovecot backend. The mailboxes are estored in maildir format, over nfs (Emc Isilon).The problem we have is that sometimes some aleatory users loss her quota and the maildirsze show ilimited cuota, with S0 value in maildirsive file.The mails are stored in the mailboxes with maildrop and postfix, but we have done some test with postfix stoped. Only Dovecot openning the mailbox and the maildirsize is corrupted.I do not known where to look. We have configured dovecot with all the recomendarions for nfs.Thank you

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virtual folder index logs
by sergio 21 Nov '19

21 Nov '19

A virtual folder is just really a saved search, but index log files are created. dovecot.list.index.log for the virtual folder itself and dovecot.index.log for all subfolders. Is it correct? Is it possible to disable index logs for virtual folder or it will only make dovecot worse? -- sergio.

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Dovecot can't log in Virtual user - please help
by Andrej Rehak 20 Nov '19

20 Nov '19

Hello Im having issues login to dovecot using imap through telnet. Im running Linux 4.9.0-11-amd64 #1 SMP Debian 4.9.189-3+deb9u1 (2019-09-20) x86_64 GNU/Linux Im totally new to setting up mailservers. I havesetup a postfix for SMTP and it can receive emails. Postfix version is mail_version = 3.1.12 I have also installed Dovecot version:2.2.27 (c0f36b0) My configuration is such that POSTFIX is configured to use DOVECOT SASL through local socket. My system is configured to store emails in /var/mail/owndomain.org/<username>. For each domain i have my own passwd file where dovecot is supposed to lookup usernames and passwords. /var/mail/owndomain.org/passwd. I have created virtualuser for accessing mails and authenticating users. My dovecot (dovecot -n output) configuration is: ------------------------------------------------------------- # 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.16 (fed8554) # OS: Linux 4.9.0-11-amd64 x86_64 Debian 9.11 auth_debug = yes auth_mechanisms = plain login auth_verbose = yes debug_log_path = /var/log/dovecot-debug.log disable_plaintext_auth = no info_log_path = /var/log/dovecot-info.log listen = 192.168.2.2 log_path = /var/log/dovecot.log mail_home = /var/mail/home/%d/%n mail_location = mbox:~/mail:INBOX=/var/spool/mail/%d/%n mail_privileged_group = virtualmail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } passdb { args = username_format=%n /var/mail/%d/passwd driver = passwd-file } pop3_uidl_format = %g protocols = imap pop3 service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } user = dovecot } ssl = no userdb { driver = passwd } userdb { args = username_format=%n /var/mail/%d/passwd default_fields = uid=virtualmail gid=virtualmail home=/var/mail/%d/%n driver = passwd-file } verbose_proctitle = yes ---------------------------------------- Now the problem: I was testing the configuration using telnet. POSTFIX receives email, stores it. No problem. When i tried to log in onto Dovecot IMAP using Telnet i get this message: * OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH-LOGIN] Dovecot ready. a login "username(a)owndomain.org" "test" a NO [UNAVAILABLE] Internal error occured. Refer to server log for more information. I have enabled verbose logging and this is the output of logs: /var/log/dovecot.log had this message: Nov 16 14:20:49 auth: Error: plain(username(a)owndomain.org,192.168.9.131,<RF4llXaXisPAqAmD>): user not found from any userdbs Nov 16 14:20:49 imap: Error: Authenticated user not found from userdb, auth lookup id=684589057 (client-pid=9601 client-id=1) /var/log/dovecot-debug.log had this message: Nov 16 14:20:18 auth: Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth Nov 16 14:20:18 auth: Debug: Read auth token secret from /var/run/dovecot/auth-token-secret.dat Nov 16 14:20:18 auth: Debug: auth client connected (pid=9601) Nov 16 14:20:47 auth: Debug: client in: AUTH 1 PLAIN service=imap session=RF4llXaXisPAqAmD lip=192.168.2.2 rip=192.168.9.131 lport=143 rport=$ Nov 16 14:20:47 auth-worker(9603): Debug: Loading modules from directory: /usr/lib/dovecot/modules/auth Nov 16 14:20:47 auth-worker(9603): Debug: pam(username(a)owndomain.org,192.168.9.131,<RF4llXaXisPAqAmD>): lookup service=dovecot Nov 16 14:20:47 auth-worker(9603): Debug: pam(username(a)owndomain.org,192.168.9.131,<RF4llXaXisPAqAmD>): #1/1 style=1 msg=Password: Nov 16 14:20:49 auth: Debug: passwd-file /var/mail/owndomain.org/passwd: Read 2 users in 0 secs Nov 16 14:20:49 auth: Debug: passwd-file(username(a)owndomain.org,192.168.9.131,<RF4llXaXisPAqAmD>): lookup: user=username file=/var/mail/owndomain.org/passwd Nov 16 14:20:49 auth: Debug: client passdb out: OK 1 user=username(a)owndomain.org Nov 16 14:20:49 auth: Debug: master in: REQUEST 684589057 9601 1 a61dd67ee43390596ddf86e6c08db6f9 session_pid=9604 request_auth_token Nov 16 14:20:49 auth-worker(9603): Debug: passwd(username(a)owndomain.org,192.168.9.131,<RF4llXaXisPAqAmD>): lookup Nov 16 14:20:49 auth: Debug: passwd-file(username(a)owndomain.org,192.168.9.131,<RF4llXaXisPAqAmD>): lookup: user=username file=/var/mail/owndomain.org/passwd Nov 16 14:20:49 auth: Debug: master userdb out: NOTFOUND 684589057 And i am completelly clueless what is the problem. Because it seems as if the password was found but the user is not? Password and user are looked up in the same passwd file. Have i forgotten something to setup? Any help or guidance is appreciated! I have also posted the issue on: https://serverfault.com/questions/992108/dovecot-cant-login-virtual-user Thanks A.

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ios12 clients not getting correct certificate, sni supported not? or config error?
by Marc Roos 20 Nov '19

20 Nov '19

I am having an ios12.4.1 client whine about access problems. He is getting the 'default' self signed ceritificate instead of the hostname alias. openssl s_client -servername mail.xxxxx.com -connect x.x.x.x:pop3s gives a 'Verify return code: 0 (ok)' I can't imagine this sni support is not available in recent versions. Should I remove this default certificate in the main section of 10-ssl.conf? These lines I have added to 10-ssl.conf ssl_cert = </etc/pki/tls/certs/mail-wildcard.crt ssl_key = </etc/pki/tls/private/mail-wildcard.key local 192.168.10.43 { ssl_key = </etc/pki/tls/private/xxxxxxx.local.key ssl_cert = </etc/pki/tls/certs/xxxxxxx.local.crt } local_name mail.xxxxx.com { ssl_key = </etc/pki/tls/private/mail.xxxxx.com.key ssl_cert = </etc/pki/tls/certs/mail.xxxxx.com.crt } local_name imap.xxxxxxx.net { ssl_key = </etc/pki/tls/private/imap.xxxxxxx.net.key ssl_cert = </etc/pki/tls/certs/imap.xxxxxxx.net.crt } [@ conf.d]# doveconf | egrep 'ssl_cert|ssl_key' ssl_cert = </etc/pki/tls/certs/mail-wildcard.crt ssl_cert_username_field = commonName ssl_key = # hidden, use -P to show it ssl_key_password = ssl_cert = </etc/pki/tls/certs/xxxxxxx.local.crt ssl_key = # hidden, use -P to show it ssl_cert = </etc/pki/tls/certs/mail.xxxxx.com.crt ssl_key = # hidden, use -P to show it ssl_cert = </etc/pki/tls/certs/imap.xxxxxxx.net.crt ssl_key = # hidden, use -P to show it

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Error: Raw backtrace and index cache
by Maciej Milaszewski IQ PL 20 Nov '19

20 Nov '19

Hi I have "problem" with dovect 2.2.13 from repo debian8 and I don't know how to solve it ... Server is a virtual (kvm) with debian 8.11 (postfix + dovecot from repo) and storage is mounting via nfs (I have use only one dovecot with external storage) All works fine but sometime ( after a few hours ) I have got a problem with dovecot cache (i use indexes) logs -> http://paste.debian.net/1117072/ The store is mounted via nfs in /home/ index is local in /var/dovecot_indexes%h All go back to normal when i remove indexes like: find /var/dovecot_indexes/home/ -name 'dovecot*' -type f -delete but this is not good solution What am I doing wrong ? For tunning nfs in 10-mail.conf: --------- "mail_location = maildir:~/Maildir:INDEX=/var/dovecot_indexes%h namespace inbox { inbox = yes } mmap_disable = yes dotlock_use_excl = no mail_fsync = always mail_nfs_storage = no mail_nfs_index = no lock_method = fcntl mail_temp_dir = /tmp mail_plugins = quota expire notify mail_log mailbox_idle_check_interval = 30 secs mail_temp_scan_interval = 1w maildir_very_dirty_syncs = no ------------- doveconf -n # 2.2.13: /etc/dovecot/dovecot.conf # OS: Linux 3.16.0-9-amd64 x86_64 Debian 8.11 auth_mechanisms = plain login disable_plaintext_auth = no dotlock_use_excl = no lda_original_recipient_header = X-Original-To log_path = /var/log/dovecot/dovecot.mail133 mail_fsync = always mail_location = maildir:~/Maildir:INDEX=/var/dovecot_indexes%h mail_plugins = quota expire notify mail_log managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext mmap_disable = yes namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size sieve = ~/dovecot.sieve sieve_default = /var/lib/dovecot/sieve/default.sieve sieve_dir = %h/sieve sieve_global_dir = /var/lib/dovecot/sieve/ } protocols = " imap lmtp sieve pop3" service auth { unix_listener auth-master { group = users mode = 0666 user = virtual } unix_listener auth-userdb { group = users user = virtual } } service lmtp { inet_listener lmtp { port = 24 } unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0600 user = postfix } user = virtual } service managesieve-login { inet_listener sieve { address = 127.0.0.1 94.124.15.58 port = 4190 } } ssl_ca = /etc/postfix/ssl/mail.maximail.pl.pem ssl_cert = </etc/postfix/ssl/mail.maximail.pl.pem ssl_key = </etc/postfix/ssl/mail.maximail.pl.key ssl_protocols = !SSLv2 !SSLv3 userdb { driver = passwd } userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol lmtp { info_log_path = /var/log/dovecot/dovecot.mali133 lmtp_save_to_detail_mailbox = yes mail_plugins = quota sieve notify push_notification } protocol lda { auth_socket_path = /var/run/dovecot/auth-master lda_mailbox_autocreate = yes log_path = /var/log/dovecot/dovecot-lda.mail133 mail_plugins = sieve postmaster_address = root }

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Junk virtual forder
by sergio 20 Nov '19

20 Nov '19

Is it possible to create a virtual folder that selects all mails with imap Junk flag (set by pigeonhole imap4flags' setflag "Junk")? -- sergio.

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Doveadm replicator ssl issues
by Miro Igov 20 Nov '19

20 Nov '19

Hello, I have 2 Dovecot 2.3.8 servers running SSL with valid wildcard certificates. Email clients connect fine, https://www.immuniweb.com/ssl/ tests show certificates are ok. However I can't make replication work when I add ssl = yes. Without ssl it works ok. I added verbose_ssl in config and error log shows: dovecot: doveadm(149.x.x.x): Error: SSL handshake failed: SSL_accept() failed: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol >From the other server 149.x.x.x I tested with openssl: openssl s_client -connect 188.x.x.x:12333 -crlf -CAfile /etc/pki/tls/cert.pem CONNECTED(00000003) depth=2 C = US, ST = New Jersey, L = Jersey City, O = The USERTRUST Network, CN = USERTrust RSA Certification Authority verify return:1 depth=1 C = GB, ST = Greater Manchester, L = Salford, O = Sectigo Limited, CN = Sectigo RSA Organization Validation Secure Server CA verify return:1 depth=0 C = FR, postalCode = 34980, ST = Occitanie, L = Montpellier, street = 123 Main str, O = My Company, OU = PremiumSSL Wildcard, CN = *.domain.com verify return:1 . . SSL-Session: Protocol : TLSv1.2 Cipher : ECDHE-RSA-AES256-SHA384 Session-ID: 95CF7F07702A50CB7CDC5D478986B5A4682EA945C487E770550EE48BFEA53EBC Session-ID-ctx: Master-Key: ECC14F2EE03C04474992A651B3695D78A27A0B07529DB35F61F6FB5F5A5D51395432BDFF37F2 41BD4B3C4B9E1AB6A929 Key-Arg : None Krb5 Principal: None PSK identity: None PSK identity hint: None Start Time: 1574108251 Timeout : 300 (sec) Verify return code: 0 (ok) The configuration of the 2 servers below. 188.x.x.x # 2.3.8 (9df20d2db): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.8 (b7b03ba2) # OS: Linux 2.6.32-754.6.3.el6.x86_64 x86_64 CentOS release 6.10 (Final) # Hostname: login.domain.com default_vsz_limit = 512 M doveadm_password = # hidden, use -P to show it mail_plugins = " notify replication" managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { mail_replica = tcp:149.x.x.x:12333 sieve = file:~/sieve;active=~/.dovecot.sieve } protocols = imap pop3 replication_full_sync_interval = 10 mins service aggregator { fifo_listener replication-notify-fifo { mode = 0666 } unix_listener replication-notify { mode = 0666 } } service doveadm { inet_listener { port = 12333 ssl = yes } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl_cert = </etc/dovecot/ssl_chain.pem ssl_cipher_list = ECDHE-RSA-AES256-SHA384:AES256-SHA256:AES256-SHA256:HIGH:MEDIUM:+TLSv1:+TLSv 1.1:+TLSv1.2:!RC4:!IDEA:!3DES:!MD5:!ADH:!aNULL:!eNULL:!NULL:!DH:!ADH:!EDH:!A ESGCM:!CAMELLIA:!SEED ssl_client_ca_file = /etc/pki/tls/cert.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } verbose_ssl = yes local 91.x.x.x { protocol imap { ssl_cert = </etc/dovecot/ssl_chain.pem ssl_key = # hidden, use -P to show it } } local 91.x.x.x { protocol pop3 { ssl_cert = </etc/dovecot/ssl_chain.pem ssl_key = # hidden, use -P to show it } } 149.x.x.x # 2.3.8 (9df20d2db): /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-754.6.3.el6.x86_64 x86_64 CentOS release 6.10 (Final) # Hostname: prime.domain.com auth_mechanisms = plain login default_vsz_limit = 1 G disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it mail_location = maildir:~/Maildir mail_plugins = " notify replication" mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { special_use = \Trash } prefix = } passdb { args = session=yes setcred=yes failure_show_msg=yes dovecot driver = pam } plugin { mail_replica = tcp:188.x.x.x:12333 } protocols = imap pop3 replication_full_sync_interval = 10 mins replication_max_conns = 11 service aggregator { fifo_listener replication-notify-fifo { mode = 0666 } unix_listener replication-notify { mode = 0666 } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } service doveadm { inet_listener { port = 12333 ssl = yes } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl_cert = </etc/dovecot/ssl_chain.pem ssl_cipher_list = ECDHE-RSA-AES256-SHA384:AES256-SHA256:AES256-SHA256:HIGH:MEDIUM:+TLSv1:+TLSv 1.1:+TLSv1.2:!RC4:!IDEA:!3DES:!MD5:!ADH:!aNULL:!eNULL:!NULL:!DH:!ADH:!EDH:!A ESGCM:!CAMELLIA:!SEED ssl_client_ca_file = /etc/pki/tls/cert.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } protocol imap { mail_max_userip_connections = 50 } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } local 178.x.x.x { protocol imap { ssl_cert = </etc/dovecot/ssl_chain.pem ssl_key = # hidden, use -P to show it } } local 178.x.x.x { protocol pop3 { ssl_cert = </etc/dovecot/ssl_chain.pem ssl_key = # hidden, use -P to show it } } Your help will be great appreciated.

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[SOLVED] Doveadm replicator ssl issues
by Miro Igov 20 Nov '19

20 Nov '19

Solved, thank you. TCPS was the issue. From: Aki Tuomi <aki.tuomi(a)open-xchange.com> Sent: Wednesday, November 20, 2019 08:54 To: Miro Igov <miro.igov(a)gmail.com>; dovecot(a)dovecot.org Subject: Re: Doveadm replicator ssl issues On 18.11.2019 22.30, Miro Igov via dovecot wrote: Hello, I have 2 Dovecot 2.3.8 servers running SSL with valid wildcard certificates. Email clients connect fine, https://www.immuniweb.com/ssl/ tests show certificates are ok. However I can't make replication work when I add ssl = yes. Without ssl it works ok. I added verbose_ssl in config and error log shows: dovecot: doveadm(149.x.x.x): Error: SSL handshake failed: SSL_accept() failed: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol >From the other server 149.x.x.x I tested with openssl: openssl s_client -connect 188.x.x.x:12333 -crlf -CAfile /etc/pki/tls/cert.pem CONNECTED(00000003) depth=2 C = US, ST = New Jersey, L = Jersey City, O = The USERTRUST Network, CN = USERTrust RSA Certification Authority verify return:1 depth=1 C = GB, ST = Greater Manchester, L = Salford, O = Sectigo Limited, CN = Sectigo RSA Organization Validation Secure Server CA verify return:1 depth=0 C = FR, postalCode = 34980, ST = Occitanie, L = Montpellier, street = 123 Main str, O = My Company, OU = PremiumSSL Wildcard, CN = *.domain.com verify return:1 . . SSL-Session: Protocol : TLSv1.2 Cipher : ECDHE-RSA-AES256-SHA384 Session-ID: 95CF7F07702A50CB7CDC5D478986B5A4682EA945C487E770550EE48BFEA53EBC Session-ID-ctx: Master-Key: ECC14F2EE03C04474992A651B3695D78A27A0B07529DB35F61F6FB5F5A5D51395432BDFF37F2 41BD4B3C4B9E1AB6A929 Key-Arg : None Krb5 Principal: None PSK identity: None PSK identity hint: None Start Time: 1574108251 Timeout : 300 (sec) Verify return code: 0 (ok) The configuration of the 2 servers below. 188.x.x.x # 2.3.8 (9df20d2db): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.8 (b7b03ba2) # OS: Linux 2.6.32-754.6.3.el6.x86_64 x86_64 CentOS release 6.10 (Final) # Hostname: login.domain.com default_vsz_limit = 512 M doveadm_password = # hidden, use -P to show it mail_plugins = " notify replication" managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { driver = pam } plugin { mail_replica = tcp:149.x.x.x:12333 sieve = file:~/sieve;active=~/.dovecot.sieve <file://~/sieve;active=~/.dovecot.sieve> } protocols = imap pop3 replication_full_sync_interval = 10 mins service aggregator { fifo_listener replication-notify-fifo { mode = 0666 } unix_listener replication-notify { mode = 0666 } } service doveadm { inet_listener { port = 12333 ssl = yes } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl_cert = </etc/dovecot/ssl_chain.pem ssl_cipher_list = ECDHE-RSA-AES256-SHA384:AES256-SHA256:AES256-SHA256:HIGH:MEDIUM:+TLSv1:+TLSv 1.1:+TLSv1.2:!RC4:!IDEA:!3DES:!MD5:!ADH:!aNULL:!eNULL:!NULL:!DH:!ADH:!EDH:!A ESGCM:!CAMELLIA:!SEED ssl_client_ca_file = /etc/pki/tls/cert.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } verbose_ssl = yes local 91.x.x.x { protocol imap { ssl_cert = </etc/dovecot/ssl_chain.pem ssl_key = # hidden, use -P to show it } } local 91.x.x.x { protocol pop3 { ssl_cert = </etc/dovecot/ssl_chain.pem ssl_key = # hidden, use -P to show it } } 149.x.x.x # 2.3.8 (9df20d2db): /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-754.6.3.el6.x86_64 x86_64 CentOS release 6.10 (Final) # Hostname: prime.domain.com auth_mechanisms = plain login default_vsz_limit = 1 G disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it mail_location = maildir:~/Maildir mail_plugins = " notify replication" mbox_write_locks = fcntl namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { special_use = \Trash } prefix = } passdb { args = session=yes setcred=yes failure_show_msg=yes dovecot driver = pam } plugin { mail_replica = tcp:188.x.x.x:12333 } protocols = imap pop3 replication_full_sync_interval = 10 mins replication_max_conns = 11 service aggregator { fifo_listener replication-notify-fifo { mode = 0666 } unix_listener replication-notify { mode = 0666 } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } } service doveadm { inet_listener { port = 12333 ssl = yes } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl_cert = </etc/dovecot/ssl_chain.pem ssl_cipher_list = ECDHE-RSA-AES256-SHA384:AES256-SHA256:AES256-SHA256:HIGH:MEDIUM:+TLSv1:+TLSv 1.1:+TLSv1.2:!RC4:!IDEA:!3DES:!MD5:!ADH:!aNULL:!eNULL:!NULL:!DH:!ADH:!EDH:!A ESGCM:!CAMELLIA:!SEED ssl_client_ca_file = /etc/pki/tls/cert.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it userdb { driver = passwd } protocol imap { mail_max_userip_connections = 50 } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } local 178.x.x.x { protocol imap { ssl_cert = </etc/dovecot/ssl_chain.pem ssl_key = # hidden, use -P to show it } } local 178.x.x.x { protocol pop3 { ssl_cert = </etc/dovecot/ssl_chain.pem ssl_key = # hidden, use -P to show it } } Hi! You need to use tcps in mail_replica. Aki

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