dovecot: Initial version of role

roles/dovecot/templates/local.conf.j2

@@ -0,0 +1,48 @@
+# ssl settings
+ssl = required
+ssl_cert = {{ tls_certs }}/{{ mail_server }}.crt
+ssl_key = {{ tls_private }}/{{ mail_server }}.key
+
+# kerberos
+auth_gssapi_hostname = "$ALL"
+auth_krb5_keytab = /etc/dovecot/dovecot.keytab
+auth_mechanisms = gssapi plain login
+
+# use index from tmpfs
+mail_location = mbox:~/imapmail/:INBOX=/var/mail/%u:INDEX=/var/spool/dovecot/index/home/%u
+
+# special icons for mailboxes
+namespace inbox {
+  mailbox spam {
+    special_use = \Junk
+  }
+  mailbox Sent {
+    auto = subscribe
+    special_use = \Sent
+  }
+  mailbox Trash {
+    auto = subscribe
+    special_use = \Trash
+  }
+}
+
+# imap specific
+protocol imap {
+  mail_max_userip_connections = 20
+  imap_idle_notify_interval = 29 mins
+}
+
+# disable plain text imap and pop3
+service pop3-login {
+    inet_listener pop3 {
+        port = 0
+    }
+    inet_listener pop3s {
+        port = 0
+    }
+}   
+service imap-login {
+    inet_listener imap {
+        port = 0
+    }
+}