This sort of stuff scares me so much. I see many people relying on one basket of eggs all the time (AWS is a fine example) with no backup plan.
I’ve actually considered running my own mail server again now DKIM/DMARC is around.
I’ve actually considered running my own mail server again now DKIM/DMARC is around.
But running my own mail server...argh. I wouldn't want to do that ever again. My approach is, instead, using my own domain with a 3rd party mail provider. That way you are always in control of your e-mail address, and you can always switch to another provider anytime, if anything happens.