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Not if you want to deliver e-mail to Google, they recently added this as a requirement.

Yep. I have a catch-all email address for a domain that forwards all mail to Gmail and that stopped working somewhere in the Jul-Aug timeframe.

Had to set up DomainKeys to fix the issue.

Still working fine here. And about to switch to no-DNS emails (alice@[x.x.x.x] and bob@[IPv6:...] in the SMTP specs)

Highly unlikely you'd be able to deliver any mail to any significant operator after that switch.

I did run a few months in no-DNS email mode without issues, but was 2-3 years ago. I know regulation and lawyers may be needed if significant conflicts happen with unreasonable system administrators.

It is critically important to keep the emails flowing independently from the DNS mafia/racket, like the web, but I guess we all very know that here on HN.

> It is critically important to keep the emails flowing independently from the DNS mafia/racket

It's really not a racket and it's really not critical.

> It's really not a racket and it's really not critical.

This means, we cannot agree.

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