docs(smtp): adds info about how to use passwords with #

closes #7265

conf/defaults.ini

@@ -279,6 +279,7 @@ allow_sign_up = true
 enabled = false
 host = localhost:25
 user =
+# If the password contains # or ; you have to wrap it with trippel quotes. Ex """#password;"""
 password =
 cert_file =
 key_file =

conf/sample.ini

@@ -263,6 +263,7 @@
 ;enabled = false
 ;host = localhost:25
 ;user =
+# If the password contains # or ; you have to wrap it with trippel quotes. Ex """#password;"""
 ;password =
 ;cert_file =
 ;key_file =