======SMTPClientAllows Replacement======

Use:
  ~smtpclientallows~
  <format string>
  ~end~
  
The [[format string]] can have the replacements
  * address - IP address (returned as host address or CIDR address as appropriate)
  * date - the date/time the address was added to the database in YYYYMMDDHHMMSS format
  * reason - the user who added the address