The author reads like they have a pretty high sense of self worth, which rubbed me the wrong way. Your comments which I noticed myself, and the other post they linked to about moving off of Gmail and onto a postfix&#x2F;dovecot self-hosted stack and the drivel about Gmail and Facebook having a long history of unfederated services and then at the very last paragraph almost casually mentioning that Outlook.com, Gmail and Yahoo seem to consistently flag mail coming from their server as spam.<p>I&#x27;ve run my own postfix&#x2F;dovecot stack since 2004 and have never had the same problems, but a sample size of two is a poor pool to derive results out of. I wouldn&#x27;t be surprised if their email server might have been configured as an open relay accidentally at one point, or even a neighbor on the same or near the same subnet been a flagrant source of spam. Coming from nothing, mail servers are somewhat hard to get running correctly and securely. Much more so than standing up Apache.<p>I would also like a follow up, as there seems to be a very skewed story, or some kind of information is missing about both of these situations.