======SMTPClientAllowAdd Action======
(VPOP3 Enterprise Only)

This adds an entry to the SMTP Client Allow list.

The data specified is:
  * IPAddress - the IP address to add. This can be an individual IP address or a CIDR address (IPv4 and IPv6 addresses are allowed)

The data is added to the 'smtpstats.smtpclientallow' database table.