Mailscale are doing great things, solving a hard problem, and they really understand the space.Set-up with mailscale is easy, and integration across multiple ESPs is helpful. As an early stage company they are supportive and responsive to users and will help you out with setting up campaigns and making things run right.Deliverability is a hard problem to solve, but they show repeated efforts to be challenging any issues that arise, as well as have built this product to solve their own problem. They get it!
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