1. in smatertmail, create your selector... lets call it "dkserver". Then generate your key (i do 768 encryption not 512)
2.
in ms dns, go to your domain... then create a subdomain called
_domainkey with the underscore before the word domainkey. this will
create a subdomain that looks like a folder named _domainkey
3.
in this subdomain folder, create a text /txt record... name it your
selector... lets copy what we did and use "dkserver" without quotes...
4. copy and paste the already generated key here... in this text field
5. go back to the domain, update the SOA to reflect the new dns change to today's date
6. make sure you save the domainkey, do not generate it again! they must match
7. make sure you have a valid spf record
8. then click test
9. if troubles continue on your dns server and your pc, in msdos do ipconfig /flushdns and ipconfig /registerdns
10.
if troubles continue test the spf records as well. send an email to a
gmail account, view original headers... then look for the domainkey
test and spf tests, make sure you pass both.
11. to isolate issues do this in webmail first, then test it in your other software later