IPv6: Thanks, now I cannot send email to my GMail friends anymore

Spreker: Teus Hagen

Abstract

Clearly IPv6 is getting there for everyone. Even into my home, where I send off emails via IPv6. But I have a problem: I am unable to allow my email to tell the world for IPv6 who I am (SMTP authentication).

The IPv6 disaster: Google refuses my email to be sent to GMail accounts when my email MTA uses an IPv6 channel.

In todays world where the coffee machine, the audio amplifier and receiver, my network switches and FritzBox router send emergency emails, these IPv6 channeled emails are also rejected. IPv6 cannot be seen operational as long as e.g. RDNS not is implemented in an easy end user fashion by the ISP's. Conclusion: send your email via IPv4! A short explanation of my experience with the IPv6 RDNS problem and the answer of a for my case only helpful major Dutch ISP.

Biografie

Teus Hagen has been present on the birth of UNIX and Internet in Europe. Teus is now retired and tries with his technical network experience to keep his open source driven freedom in the world of privacy violations and badly secured networks. Teus has been awarded by Usenix and NLUUG for his Open Source work and recently entered the Internet Hall of Fame.