Comment by AnonC

If Fastmail is included in the startup category, why aren’t email companies like Posteo and Mailbox.org included? Runbox.com is a one person operation. They’ve all been around for decades and are still going strong. Posteo hasn’t even taken any VC investment (which could be one reason, as the article points out, for failure). Migadu has been around for quite sometime and doesn’t find a mention in this list.