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This is a true story:

I rent some servers from the Rackspace cloud for personal use. I have my own sites on these machines, and my own email servers.

Meanwhile, I have a day job, and lately it has been consuming 12 hours a day. We missed a deadline and we have all been working like crazy to catch up. I have fallen behind reading my personal email.

Roughly a month ago, my friends who use Gmail stopped getting my email. Or rather, they did not know I was sending them email, because all of my email to them was going to spam.

After a few weeks, I finally had a free weekend to catch up on my personal life, so I did some investigations. Turns Rackspace had switched over to IP6 in a way that impacted my email. I did not have a Sender Policy Framework for IP6, only IP4.

It's likely that Rackspace sent me an email about this, though I never read it because I was busy.

This was easy to fix: I added a SPF for IP6.

However, these kinds of issues do make it harder to maintain a personal email server. Its tough for us to keep up with the changes.




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