If you have problems accessing the VPOP3 settings:
If you have problems after this with VPOP3 v5 or later, see:
For VPOP3 v4 and earlier, see below:
Now, try logging into the main settings again (Start → Programs → VPOP3 → Configure VPOP3). If it works, go to Services → WebMail, and go to the 'IP Access Restrictions' tab and press the Default For Your LAN button, and Submit.
Note that if you have a paid support contract, it can be easiest to simply contact us and we can remotely access your PC (with your permission) and make sure administrator access is working, and show you how to do it
*If these have to be set to something else for other reasons, then we recommend that you still change them here, and then change them back after you have restored access.