Flow Guard

Flow Guard makes it possible to control the volume of outbound emails. In this way, unwanted mass emails, whether generated by inexperienced users or triggered by malware, can be recognised before they are sent and the reputation of your own domain can be protected. Flow Guard assigns quotas for outbound emails to NoSpamProxy users. If the set threshold is exceeded, any further outbound email is rejected.

There are a total of two threshold values that can be set per user:

  • Number of emails per hour
  • Total number of emails per day
TIP: You can also assign the thresholds based on AD group memberships.
NOTE:

NoSpamProxy allows email addresses that are not assigned to any user to be used for sending. In these cases, Flow Guard proceeds as follows:

  • If no user is assigned to the email address, licences are counted per email address.
  • If several email addresses are assigned to a user, the emails from all email addresses are added together.

Setting threshold values

You set the thresholds either globally for all users or for individual corporate users. To do this you must