Will LetterMark LITE weigh down my email?

The LetterMark client software on the user’s machine adds light html “instructions” to call a specified template from the LetterMark Data Center. The templates and user contact information do not travel with the email, but are called from the data center when the recipient opens the email.

Your email is not intercepted, re-routed or interfered with in any way on its path from source to destination.