[OSM-talk] Sender policy framework mail for openstreetmap.org

[Nick Hill]

I have added a sender policy framework DNS entry for openstreetmap.org.

This means if your MTA implements a sender policy framework to verify the  mail 
has come from the domain it says it is from, openstreetmap mail should pass the 
test.

For more information about SPF:
http://www.openspf.org/

Our SPF entry is:
v=spf1 a:mail.openstreetmap.org ip4:80.68.94.95 -all

Any mail implementing SPF should immediately clear the mail against the ip4 
address. If mail.openstreetmap.org is moved to another address, mail should 
still check-out.

Likewise, this tells MTAs to discard mail which purports to come from 
openstreetmap.org but does not originate from our server.