You are continuously receiving the following error: 'The user limit has been exceeded. GFI MailEssentials will not protect your email after <date>. Contact your sales representative to update your license key. Found current users: x'.
Users are removed by using the User Manager tab, in the Configuration UI, but it does not help.
If removing users with the User Manager doesn't help, either permanently disable the accounts and remove their ability to send outbound emails, or increase the number of seats for your license.
Users can be inserted into
userlist.mdb either from the Configuration UI or gathered automatically from outbound emails and saved in the user database.
For the latter, MailEssentials will retrieve the sender’s email address of outbound emails and add the email address to the users’ list. These users (email addresses) are used in user-based rules (e.g. disclaimer) and for licensing purposes.