The validation is no more about the being similar to the expected config. Now wre check that the value of the p parameter of a DMARC record has the value none, quarantine or reject. No check for other parameters but it could be improved
The dig of TXT for @ can returns multiple entries.
In that case, the DNS diagnosis fails.
The modification preserves the handling of DMARC and the likes
which use a single entry and a specfic domain name.
For single entry list, the behavior is preserved.
If mutliple TXT entries are defined for @, only the v=spf1
one is returned.
Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
