1

Topic: can't login via outlook IMAP port 993 TLS - loop rip 127.0.0.1

==== Required information ====
- iRedMail version (check /etc/iredmail-release):  0.9.7 MARIADB edition
- Linux/BSD distribution name and version:  Centos
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? iRedAdmin-Pro-SQL-2.8.0
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Please Help, User can't login via outlook IMAP port 993 TLS. Thanks

May 17 22:49:09 mail dovecot: imap-login: Login: user=<XXXX@XXXX.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=20220, secured, session=<R/Ad8GdsNIR/AAAB>
May 17 22:49:09 mail dovecot: imap(XXXX@wahwoalum.com): Logged out in=825 out=5086
May 17 22:50:09 mail dovecot: imap-login: Login: user=<XXXX@XXXX.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=20238, secured, session=<hhm282dsPIR/AAAB>
May 17 22:50:09 mail dovecot: imap(XXXX@wahwoalum.com): Logged out in=825 out=5086
May 17 22:51:09 mail dovecot: imap-login: Login: user=<XXXX@XXXX.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=20248, secured, session=<pulE92dsRoR/AAAB>
May 17 22:51:09 mail dovecot: imap(XXXX@XXXX.com): Logged out in=825 out=5086
May 17 22:52:09 mail dovecot: imap-login: Login: user=<XXXX@XXXX.com>, method=PLAIN, rip=127.0.0.1, lip=127.0.0.1, mpid=20262, secured, session=<Z4jY+mdsToR/AAAB>
May 17 22:52:09 mail dovecot: imap(XXXX@XXXX.com): Logged out in=825 out=5086

2

Re: can't login via outlook IMAP port 993 TLS - loop rip 127.0.0.1

What's the error message you got in Outlook? Any related error in Dovecot log file?

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3

Re: can't login via outlook IMAP port 993 TLS - loop rip 127.0.0.1

i have enable the port on the firewalld  and  restart the dovecot but also same. and below is my testing result

                      TSL       SSL
IMAP(143)         X         ---
IMAP(993)         X          V
SMTP(587)        V         ---
POP(995)          V          V



cat dovecot.log

May 17 12:51:54 mail dovecot: master: Warning: Killed with signal 15 (by pid=29774 uid=0 code=kill)
May 17 12:51:54 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 12:51:54 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 21:33:45 mail dovecot: master: Warning: Killed with signal 15 (by pid=17453 uid=0 code=kill)
May 17 21:33:46 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 21:33:46 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 21:45:44 mail dovecot: master: Warning: Killed with signal 15 (by pid=17893 uid=0 code=kill)
May 17 21:45:44 mail dovecot: anvil: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 21:45:44 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 21:45:44 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 21:54:41 mail dovecot: master: Warning: Killed with signal 15 (by pid=18267 uid=0 code=kill)
May 17 21:54:41 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 21:54:44 mail dovecot: master: Warning: Killed with signal 15 (by pid=18299 uid=0 code=kill)
May 17 21:54:44 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 22:00:09 mail dovecot: master: Warning: Killed with signal 15 (by pid=18482 uid=0 code=kill)
May 17 22:00:10 mail dovecot: anvil: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:00:10 mail dovecot: auth: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:00:10 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:00:10 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 22:00:10 mail dovecot: config: Warning: service auth { client_limit=1000 } is lower than required under max. load (5500)
May 17 22:00:10 mail dovecot: config: Warning: service anvil { client_limit=1000 } is lower than required under max. load (5303)
May 17 22:02:39 mail dovecot: master: Warning: Killed with signal 15 (by pid=18714 uid=0 code=kill)
May 17 22:02:39 mail dovecot: anvil: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:02:39 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:02:39 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:02:39 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 22:02:39 mail dovecot: config: Warning: service auth { client_limit=1000 } is lower than required under max. load (1500)
May 17 22:02:39 mail dovecot: config: Warning: service anvil { client_limit=1000 } is lower than required under max. load (1303)
May 17 22:14:57 mail dovecot: master: Warning: Killed with signal 15 (by pid=19101 uid=0 code=kill)
May 17 22:14:57 mail dovecot: anvil: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:14:57 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:14:57 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 22:14:57 mail dovecot: config: Warning: service auth { client_limit=1000 } is lower than required under max. load (1500)
May 17 22:14:57 mail dovecot: config: Warning: service anvil { client_limit=1000 } is lower than required under max. load (1303)
May 17 22:15:24 mail dovecot: master: Warning: Killed with signal 15 (by pid=19194 uid=0 code=kill)
May 17 22:15:24 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:15:24 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 22:15:24 mail dovecot: config: Warning: service auth { client_limit=1000 } is lower than required under max. load (1500)
May 17 22:15:24 mail dovecot: config: Warning: service anvil { client_limit=1000 } is lower than required under max. load (1303)
May 17 22:17:15 mail dovecot: master: Warning: Killed with signal 15 (by pid=19334 uid=0 code=kill)
May 17 22:17:15 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:15 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 22:17:15 mail dovecot: config: Warning: service auth { client_limit=1000 } is lower than required under max. load (1500)
May 17 22:17:15 mail dovecot: config: Warning: service anvil { client_limit=1000 } is lower than required under max. load (1303)
May 17 22:17:42 mail dovecot: master: Warning: Killed with signal 15 (by pid=19413 uid=0 code=kill)
May 17 22:17:42 mail dovecot: config: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: anvil: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:42 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:17:49 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 22:17:49 mail dovecot: config: Warning: service auth { client_limit=1000 } is lower than required under max. load (1500)
May 17 22:17:49 mail dovecot: config: Warning: service anvil { client_limit=1000 } is lower than required under max. load (1303)
May 17 22:18:40 mail dovecot: master: Warning: Killed with signal 15 (by pid=19525 uid=0 code=kill)
May 17 22:18:40 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)
May 17 22:57:42 mail dovecot: master: Warning: Killed with signal 15 (by pid=20408 uid=0 code=kill)
May 17 22:57:42 mail dovecot: anvil: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:57:42 mail dovecot: config: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:57:42 mail dovecot: imap: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:57:42 mail dovecot: log: Warning: Killed with signal 15 (by pid=1 uid=0 code=kill)
May 17 22:57:42 mail dovecot: master: Dovecot v2.2.32 (dfbe293d4) starting up for pop3, imap, sieve, lmtp (core dumps disabled)



dovecot -n

# 2.2.32 (dfbe293d4): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.20 (7cd71ba)
# OS: Linux 3.10.0-693.11.6.el7.x86_64 x86_64 CentOS Linux release 7.4.1708 (Core)
auth_master_user_separator = *
auth_mechanisms = PLAIN LOGIN
dict {
  acl = mysql:/etc/dovecot/dovecot-share-folder.conf
  quotadict = mysql:/etc/dovecot/dovecot-used-quota.conf
}
first_valid_uid = 2000
last_valid_uid = 2000
listen = * [::]
mail_gid = 2000
mail_location = maildir:%Lh/Maildir/:INDEX=%Lh/Maildir/
mail_plugins = quota mailbox_alias acl mail_log notify
mail_uid = 2000
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
namespace {
  inbox = yes
  location =
  mailbox Archive {
    auto = no
    special_use = \Archive
  }
  mailbox Archives {
    auto = no
    special_use = \Archive
  }
  mailbox "Deleted Messages" {
    auto = no
    special_use = \Trash
  }
  mailbox Drafts {
    auto = subscribe
    special_use = \Drafts
  }
  mailbox Junk {
    auto = subscribe
    special_use = \Junk
  }
  mailbox "Junk E-mail" {
    auto = no
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox "Sent Items" {
    auto = no
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    auto = no
    special_use = \Sent
  }
  mailbox Spam {
    auto = no
    special_use = \Junk
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix =
  separator = /
  type = private
}
namespace {
  list = children
  location = maildir:%%Lh/Maildir/:INDEX=%%Lh/Maildir/Shared/%%Ld/%%Ln
  prefix = Shared/%%u/
  separator = /
  subscriptions = yes
  type = shared
}
passdb {
  args = /etc/dovecot/dovecot-mysql.conf
  driver = sql
}
passdb {
  args = /etc/dovecot/dovecot-master-users
  driver = passwd-file
  master = yes
}
plugin {
  acl = vfile
  acl_shared_dict = proxy::acl
  mail_log_events = delete undelete expunge mailbox_delete mailbox_rename
  mail_log_fields = uid box msgid size from subject
  mailbox_alias_new = Sent Messages
  mailbox_alias_new2 = Sent Items
  mailbox_alias_old = Sent
  mailbox_alias_old2 = Sent
  quota = dict:user::proxy::quotadict
  quota_grace = 10%%
  quota_rule = *:storage=1G
  quota_warning = storage=100%% quota-warning 100 %u
  quota_warning2 = storage=95%% quota-warning 95 %u
  quota_warning3 = storage=90%% quota-warning 90 %u
  quota_warning4 = storage=85%% quota-warning 85 %u
  sieve = %Lh/sieve/dovecot.sieve
  sieve_before = /var/vmail/sieve/dovecot.sieve
  sieve_dir = %Lh/sieve
  sieve_global_dir = /var/vmail/sieve
  sieve_max_redirects = 100
}
protocols = pop3 imap sieve lmtp
service auth {
  unix_listener /var/spool/postfix/private/dovecot-auth {
    group = postfix
    mode = 0666
    user = postfix
  }
  unix_listener auth-master {
    group = vmail
    mode = 0666
    user = vmail
  }
  unix_listener auth-userdb {
    group = vmail
    mode = 0660
    user = vmail
  }
}
service dict {
  unix_listener dict {
    group = vmail
    mode = 0660
    user = vmail
  }
}
service imap-login {
  service_count = 1
}
service lmtp {
  executable = lmtp -L
  inet_listener lmtp {
    address = 127.0.0.1
    port = 24
  }
  process_min_avail = 5
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0600
    user = postfix
  }
  user = vmail
}
service managesieve-login {
  inet_listener sieve {
    address = 127.0.0.1
    port = 4190
  }
}
service pop3-login {
  service_count = 1
}
service quota-warning {
  executable = script /usr/local/bin/dovecot-quota-warning.sh
  unix_listener quota-warning {
    group = vmail
    mode = 0660
    user = vmail
  }
}
ssl = required
ssl_ca = </etc/pki/tls/certs/mail.xxxxx.com.ca-bundle
ssl_cert = </etc/pki/tls/certs/mail.xxxxx.com.crt
ssl_cipher_list = ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5
ssl_dh_parameters_length = 2048
ssl_key =  # hidden, use -P to show it
ssl_prefer_server_ciphers = yes
ssl_protocols = !SSLv2 !SSLv3
syslog_facility = local5
userdb {
  args = /etc/dovecot/dovecot-mysql.conf
  driver = sql
}
protocol lda {
  lda_mailbox_autocreate = yes
  lda_mailbox_autosubscribe = yes
  mail_plugins = quota mailbox_alias acl mail_log notify sieve
  postmaster_address = root
}
protocol lmtp {
  lmtp_save_to_detail_mailbox = yes
  mail_plugins = quota sieve
  postmaster_address = postmaster
  recipient_delimiter = +
}
protocol imap {
  imap_client_workarounds = tb-extra-mailbox-sep
  mail_max_userip_connections = 300
  mail_plugins = quota mailbox_alias acl mail_log notify imap_quota imap_acl
}
protocol pop3 {
  mail_max_userip_connections = 300
  mail_plugins = quota mailbox_alias acl mail_log notify
  pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
  pop3_uidl_format = %08Xu%08Xv
}

Post's attachments

143 TLS - 1.jpg
143 TLS - 1.jpg 40.14 kb, file has never been downloaded. 

143 TLS - 2.jpg
143 TLS - 2.jpg 42.86 kb, file has never been downloaded. 

993 TLS - 1.jpg
993 TLS - 1.jpg 48.44 kb, file has never been downloaded. 

993 TLS - 2.jpg
993 TLS - 2.jpg 42.86 kb, file has never been downloaded. 

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4

Re: can't login via outlook IMAP port 993 TLS - loop rip 127.0.0.1

Any related error in /var/log/dovecot/imap.log? Also:

*) Please disable Fail2ban service and test again.
*) Enable debug mode in Dovecot and test again: https://docs.iredmail.org/debug.dovecot.html

----

Does my reply help a little? How about buying me a cup of coffee ($5) as an encouragement?

buy me a cup of coffee