john will pay $5.00 to the first person to successfully answer the question:

Hello guys i m trying to setup SPF in my domain so I can send emails to hotmail and yahoo
Please help me out
The openspf wizard said that I have to set this in dns of my domain.

v=spf1 a mx ~all

this is all they say i shud put
However, it is possible if you use a dynamic DNS provider to associate your instance's IP address with your own domain name. Depending on the dyndns provider they may allow you to configure SPF records for your domain.

unfunded

Answer john's question

People succeed in answering john's questions 0% of the time (0 success in 1 attempt).

Counter Offer:

$6 | $7 | $8 | other:

Answers by: Photog67

Photog67's Answer:

Reply by Photog67 569 days ago

Typically a software client is installed on a PC that is using - or is behind a router using - the public dynamic IP address. This client checks at regular intervals to update a chosen hostname to point to the current IP address. Typically the TTL or time-to-live from a dynamic IP service is very low to allow for quick changes once the dynamic IP address changes.
This is off of http://www.openspf.org/FAQ/Dynamic_IP

Reply by Photog67 569 days ago

In your SPF record, reference the dynamic IP address using the hostname, for example: a:name.example.com.