SPF and DKIM with google app

If you use free email with google app ,you should declaration spf and setup dkim for your domain :

SPF

1. You declare  txt record in dns of domain such as:

"v=spf1 include:_spf.google.com ~all"

Dkim

1. Login google app with account admin https://www.google.com/a/cpanel/domain.xxx/Dashboard
2. Advance tool
3.Set up email authentication (DKIM)
4.Do follow instruction of google about declare on DNS and verify

Nguyen Si Nhan