I'm trying to set up my SPF record to validate properly both for emails sent through Google Apps and for those sent from MailChimp's servers.
MailChimp's docs recommend this SPF record:
v=spf1 mx ptr include:servers.mcsv.net ~all.
Google Apps' docs recommend this:
v=spf1 include:_spf.google.com ~all.
My main concern is
mx ptr. Given that Google's docs don't include
mx ptr, can I safely combine the two SPF records to include
In other words, will this validate for both servers:
v=spf1 mx ptr include:_spf.google.com include:servers.mcsv.net ~all?