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--- picoenterprise:mta-mailstore-centos [2017/04/06 23:48]
Luc Nieland
+++ picoenterprise:mta-mailstore-centos [2017/04/07 17:03] (current)
Luc Nieland
@@ Line 138: / Line 138: @@
 In: /etc/postfix/virtual
 <code>
+# e-mail addr.:         username @ servername (of the Dovecot-server):
 info@example.com       sv@vps2.laboratory.local
 sv@example.com         sv@vps2.laboratory.local
-#
-info@example.com       ln@vps2.laboratory.local
+info@example2.com      ln@vps2.laboratory.local
-ln@example.com         ln@vps2.laboratory.local
+ln@example2.com        ln@vps2.laboratory.local
 </code>
@@ Line 164: / Line 166: @@
 ===== Dovecot =====
+//The SE-Linux configuration is out of the scope of this howto.//
 Hostname: vps2.laboratory.local
+firewall:
+  firewall-cmd --add-port={24/tcp,143/tcp,993/tcp,4190/tcp,12345/tcp} --permanent
+  firewall-cmd --reload
+Software:
+  yum install  dovecot
+En voeg toe voor Sieve:
+  yum install dovecot-pigeonhole
+Create directories and files:
+  mkdir /var/dovecot/
+  mkdir /var/dovecot/mail
+  mkdir /var/dovecot/sieve
+  mkdir /var/dovecot/conf
+  #
+  touch /var/dovecot/conf/users
+  #
+  chown -R dovecot:dovecot  /var/dovecot
+  touch /var/log/dovecot.log
+  chown dovecot:dovecot /var/log/dovecot.log
+Make x509 certs:
+  openssl req -utf8 -newkey rsa:2048 -keyout /var/dovecot/conf/tls.key -nodes -x509 -days 3650 -out /var/dovecot/conf/tls.crt -set_serial 0
+Create usernames and pw's (for the SASL-db):
+The IMAP-users are created by adding a line in the users file. It has two columns, separated by a colon. The first column is the username, the second line contans the sha512-crypt which can be generated by executing:
+  doveadm pw -s SHA512-CRYPT
+The result in /var/dovecot/conf/users will be like:
+  ...
+  sv:{SHA512-CRYPT}$6$T5tUmkrjF2mAbo9G$3EEvR08UCHb11KCmCHbCaPcd1xv7CylpfdZgu3gv0WddRZGoF1drU62aHHEU9U4VTeTsM/wlxI2svBXsd7auX0
+  ...
+  ln:{SHA512-CRYPT}$6$RHC1lIs0bS.ggVzR$NRaTNB.SJW7.sTcFbMcbfRZdJwEllNCM4zmROOxhiTBqQr4B4oxFnOAA1I.BknbKbSZ7uuvk5Z6k3JjT1Jonq/
+  ...
+In: /etc/dovecot/dovecot.conf
+<code>
+log_path = /var/log/dovecot.log
+mail_location = maildir:/var/dovecot/data/%n/mail
+auth_mechanisms = plain login
+disable_plaintext_auth = no
+#ssl_ca = </var/dovecot/conf/
+ssl_cert = </var/dovecot/conf/tls.crt
+ssl_key = </var/dovecot/conf/tls.key
+# Default:
+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 = passwd-file
+  args = scheme=CRYPT username_format=%n /var/dovecot/conf/users
+}
+first_valid_uid = 2
+userdb {
+  # For static type, LDA verify the user's existence by lookup passdb
+  #   ( http://wiki2.dovecot.org/UserDatabase/Static )
+  driver = static
+  args = uid=dovecot gid=dovecot home=/var/dovecot/data/%n/mail
+}
+protocols = "imap lmtp sieve"
+protocol lmtp {
+  mail_plugins = $mail_plugins sieve
+}
+service managesieve-login {
+  inet_listener sieve {
+    address = 0.0.0.0
+    port = 4190
+  }
+  service_count = 1
+  process_min_avail = 1
+}
+service managesieve {
+}
+#protocol managesieve {
+#  disable_plaintext_auth = no
+#}
+protocol sieve {
+}
+plugin {
+  sieve =      /var/dovecot/data/%n/managesieve/.dovecot.sieve
+  sieve_dir =  /var/dovecot/data/%n/managesieve/sieve
+}
+# ###############################
+service imap-login {
+  inet_listener imap {
+    port = 143
+  }
+  inet_listener imaps {
+    port = 993
+  }
+}
+protocol imap {
+  disable_plaintext_auth = no
+}
+service lmtp {
+  inet_listener lmtp {
+    address = 0.0.0.0
+    port = 24
+  }
+  user = dovecot
+}
+service auth-worker {
+  # Forbid to access /etc/shadow
+  user = $default_internal_user
+}
+service auth {
+  inet_listener saslauth {
+     address = 0.0.0.0
+     port = 12345
+  }
+}
+</code>
+Enable and start the Dovecot:
+  systemctl start dovecot
+  systemctl enable dovecot
+Make a connection with each mailbox with a MUA (mutt or Thunderbird) first **before** sending mail to the LMTP-connection. This will let Dovecot create the mailfolder structure for the mailbox to be stored. See: /var/dovecot/data/ (each username has it's own directory here).
+Connect info for the MUA:
+  IMAP host:port = vps2.laboratory.local : 993
+  SMTP host:port = vps1.laboratory.local : 587
+  loginname = sv
+Test with:
+  telnet  vps1.laboratory.local 25

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