Inclusion of SPF records

[jpgriffo]

Reading the Change log it seems that manipulation of SPF records was enabled but not seen anywhere in the code. Anyway the important thing is we have added such functionality.

[tjfontaine]

I have no problems with exporting the spf type for creation, but I'm not thrilled with resolveSpf since there's not a related method in core, and resolve can work with spf just fine

[jpgriffo]

The DNS resolve implementation of Node.JS is quite limited (https://github.com/joyent/node/blob/master/lib/dns.js) to the following records 'A', 'AAAA' , 'MX', 'TXT', 'SRV', 'PTR', 'NS' and 'CNAME'. Where I think that this will probably expand to include other records such as 'SPF', 'LOC', 'RRSIG' in the next releases.

Your wonderful implementation of the DNS server should allow to incorporate this new records to allow developers as my self to construct more complex dns services around your dns server more easily.

Anyway I will also in create a pull request in Node to allow this kind of records.

Also this update would fix the issue #47

[taoeffect]

This project is no longer maintained, but we are happy to link to a well maintained fork.

Please see: #111