Ipswitch IM is preventing you sending a message to a specific user. This is normally accompanied by a message to similar to the following; 


’<< Error: not sending message to usera@tims.net. User userb@tims.net has been blocked from sending messages. >>’ 

To resolve this error follow the steps below


  1. Load up the main Ipswitch window 
  2. From the menu at the top of the window select ‘View’ and then 'Options'
  3. Scroll down the ‘Categories’ and select ‘Privacy’ 
  4. A list of users who are blocked by you are displayed. Click on a user and press ‘Remove’ 
  5. Click ‘Ok’ 
  6. You should now be able to send messages to this user