Unable to activate MagicSpam using paid Pro license that was purchased at MagicSpam online store at http://www.magicspam.com/store-plesk.php:
License Key does not match for this product
MagicSpam Standard and PRO versions are treated like two separate products in Plesk.
1. Download MagicSpam Pro version from MagicSpam directly using your paid Pro license:
2. Open Plesk > Extensions and remove MagicSpam Standard version that was installed from Plesk Extensions Catalog
3. Make sure there are no Standard licenses in Tools and Settings > License Management > Additional Licenses. If there are, remove the license file.
4. Install MagicSpam Pro from downloaded file in Plesk > Extensions > Add Extension > Browse
5. Enter your license key in the MagicSpam interface to activate MagicSpam Pro
For more details, visit MagicSpam forum.
Note: PRO version can currently only be purchased through the store at <http://www.magicspam.com/store-plesk.php>