The other infrastructure issue is e-mail deliverability. Originally, Treehouse used my own personal e-mail infrastructure, which had excellent IP reputation and good deliverability.

Earlier this year I decided to decommission that infrastructure, and Treehouse now acquires its e-mail infrastructure from MXroute. Due to the providers that MXroute uses for its own infrastructure, we have had less than stellar e-mail deliverability.

We are open to suggestions from the general public on how to proceed with solving the e-mail problem.