Why is the Subject line getting changed to a "Please Purchase" message"?

Question

My company has written an application that automatically processes incoming emails using mail.dll. When it retrieves the subject line of the email, it is coming through as "Please purchase Mail.dll license at https://www.limilabs.com/mail". The MailLicense.xml file is present in the bin directory of the application, and when I interrogated it using the licensehelper class, it came back as a valid license. Do you know why we are getting this message?

Answer 1

If the LicenseHelper.GetLicenseStatus method returns LicenseStatus.Valid, subject is not changed.

The MailLicense.xml file is present in the bin directory of the application

Bin folder is not the correct place for the license file.

The license is loaded from the run folder of your application.

What is the value of:

string fileName = LicenseHelper.GetLicensePath();

Is the license file present in this location?