Yahoo is now recycling handles

Scott Howard scott at
Wed Sep 4 03:57:16 UTC 2013

To their (partial) credit they are also supporting a new email header :

via draft-ietf-appsawg-rrvs-header-field

The idea of this header is that it will allow a sender to control that a
user will only receive an email if that email address was valid before a
specific date, thus at least stopping someone from using a recycled account
to carry out a password reset on another service.

Facebook at least is already sending this header on all emails.

Overall this is nothing new - Hotmail has been doing the same thing for


On Tue, Sep 3, 2013 at 8:09 PM, Jay Ashworth <jra at> wrote:

> Whackiness, predictably, ensues:
> You can do the math how this might affect you, your services, and your
> users,
> if you have those.
> Will people *ever* start listening when we tell them how Bad an Idea
> something is?  The RISKS are endless...
> Cheers,
> -- jra
> --
> Jay R. Ashworth                  Baylink
> jra at
> Designer                     The Things I Think                       RFC
> 2100
> Ashworth & Associates         2000 Land
> Rover DII
> St Petersburg FL USA               #natog                      +1 727 647
> 1274

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