Running into support issues. Clients want every senerio of Desktop, Mobile and Web clients Mac and PC.
All emails are responsive so looking for a good baseline to guarantee support for.
Ideally it would be best to tailor this based on subscribers usage but may not have this info all the time.

Would you use the following as a guideline? OR Do you have a better list and why?

TOP Email Client Market Share Reports

  1. Apple iPhone 28% +1.07
  2. Gmail 16% +0.4
  3. Apple iPad 13% +0.53
  4. Outlook 9% -2.39
  5. Apple Mail 8% +0.76
  6. Google Android 6% +0.61
  7. Outlook.com 5% -0.12
  8. Yahoo! Mail 4% +0.14 9 Windows Live Mail 2% -0.04
  9. AOL Mail 1% +0.01