Google Product Forums
Re: Google Apps Verfication with 1&1.de domain hosting?
Mar 7, 2012 4:55 AM
Posted in group:
Verification and MX Records
It's worth bearing in mind that no TXT records means
1) No SPF record email authentication
2) No DKIM domain signing.
And in 1&1's case, they also don't allow subdomains
in the host records.