GeekFun

While we are on the subject of SPF, I’ll mention a Thunderbird SPF plugin that I’ve just installed. It’s a bit quirky in that you have to tell it by hand what DNS servers it should use for it to work reliably (otherwise I suspect it forwards reqests to a server running on the author’s server, not something I feel good about).

It’s interesting to see what domains support SPF and which do not.

Reed College has SPF records for their mailservers while the University of Washington appearantly does not.

Others that do: Entercom, Netflix.

The plugin claims that Hotmail and MSN don’t support SPF verification, even though, to my untrained eye, their nameservers seem to report an appropriate SPF record.

E-mail sent through mailing lists, and forwarded from other personal accounts also fails because of the extra mailserver hop.