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What does it mean when you get the "feature key is malformed" error while adding feature keys?
Cisco Email Security Appliance (ESA), Web Security Appliance (WSA), Security Management Appliance (SMA), all versions of AsyncOS
This error will be issued if one or more of the following is true:
In some cases, the problem could happen if the keys were created while the appliance was using a previous version of AsyncOS and the appliance has since been upgraded
If none of the above conditions are true but the feature keys still give the same error, then please contact Cisco TAC and we will verify the feature keys and investigate the issue.