I have an automated email set up that has repeatedly been just sending in coded form. A portion is here:
List-Unsubscribe: <https://ac411.infusionsoft.com/app/optOut/noConfirm/50640/0547ac81f38d41aa>, <mailto:email@example.com>
The majority of people who respond have this type of experience. I get responses everywhere from understanding to “why would I work with you if you can’t send an email.” This has happened with several different mail servers on the receive side (gmail, yahoo, outlook, etc.) I have not been able to reproduce it sending tests to myself.
Any input/suggestions from anyone is greatly appreciated. Please Help.