Before you send out that all important email newsletter, make sure to test your newsletter in the most popular email newsletter programs.
- Microsoft Outlook/Outlook Express
If you do not have access to Outlook, send to a friend or colleague who does. It will be well worth it.
Better to test on multiple browsers (i.e. Internet Explorer, Firefox, and Safari)
Gmail only allows inline CSS.
Setup test accounts with Hotmail, Gmail & Yahoo.
The main challenge with developing email newsletter campaigns is making sure the design looks good on multiple email programs.