Default TXT record for Google Apps Mail
When ever the email service has been pointed to the Google Apps Mail, you will not be able to use the default SPF record as
“v=spf1 include:spf.mschosting.com -all”
In such, the default TXT record for Google Apps Mail need to setup as:
“v=spf1 include:_spf.google.com ~all”
Please refer to the following article to know more.
Knowledge Base: Setting Up Google Apps Mail through cPanel