feat: add mail

mail/conf/opendkim/opendkim.conf.default

@@ -0,0 +1,29 @@
+BaseDirectory		/run/opendkim
+
+#LogWhy                 yes
+Syslog                  yes
+SyslogSuccess           yes
+
+Canonicalization	relaxed/simple
+
+Domain			example.com
+Selector		default
+KeyFile			/var/db/dkim/example.com.private
+
+Socket                  inet:8891@localhost
+#Socket			local:opendkim.sock
+
+ReportAddress           postmaster@example.com
+SendReports             yes
+
+## Hosts to sign email for - 127.0.0.1 is default
+## See the OPERATION section of opendkim(8) for more information
+#
+# InternalHosts		192.168.0.0/16, 10.0.0.0/8, 172.16.0.0/12
+
+## For secondary mailservers - indicates not to sign or verify messages
+## from these hosts
+#
+# PeerList		X.X.X.X
+
+# PidFile		/var/run/opendkim/opendkim.pid