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Activation failure

In the case activation of ESET Mail Security was not successful, possible scenarios are:

License Key already in use

Invalid License Key—product activation form error

Missing or invalid information must be addressed

Communication with the activation database failed—try again in 15 minutes

Connection to ESET activation servers is unavailable or disabled

Ensure you entered the proper License Key or attached an Offline License and attempt to activate again.

If you are unable to activate, see the activation troubleshooting wizard.