I'm using Softlayer to manage the DNS records for my domains. I am trying to add an spf record for Campaigner (newsletter service). All of their emails are sent from cmpgnr.com .
Here's what I've got so far trying to figure out the wizard on http://old.openspf.org/index.html
v=spf1 a mx include:cmpgnr.com ?all
my mx records are