At Pinpointe, we’ve been using DKIM and SPF for nearly a year for our customers – at no extra charge.
If you want to know more about which ISP’s are presently using Authentication and/or Authorization to verify the validity of your email (and thereby decide whether to deliver your email or possibly drop it into Ethertrash) – you can download the full table a the ESPC Coalition site here:
A brief summary is included below:
|
Receiver |
DKIM |
Domain Keys |
SenderID |
SPF |
|
AOL |
XX |
|
XX |
|
|
Bell Canada |
XX |
XX |
XX |
|
|
Bellsouth |
XX |
|
XX |
XX |
|
Charter |
|
|
|
XX |
|
Comcast |
|
|
XX |
XX |
|
Cox.net |
XX |
|
|
|
|
Earthlink |
XX |
XX |
|
XX |
|
Gmail |
XX |
XX |
|
XX |
|
Hotmail |
|
|
XX |
|
|
Juno/NetZero |
|
|
XX |
XX |
|
MSN |
|
|
XX |
|
|
Verizon |
|
|
|
XX |
|
Yahoo! Mail |
XX |
XX |
|
XX |
If you want to learn more about DKIM Authentication or SPF Authorization – two steps you should be taking to improve your email delivery, check out our other Blog entries:
https://www.pinpointe.com/blog/deploying-dkim-authentication-in-4-simple-steps
https://www.pinpointe.com/blog/install-an-spf-record-to-improve-email-delivery
