Email Branding for Small Businesses is compatible with Outlook, Entourage, Google Apps, Omniture, Internet Explorer, Firefox and more, and will let you:

• Brand the thousands of emails your company sends
• Achieve higher open and unique click-through rates
• Use email sales tools to drive qualified traffic to your website
• Turn business email into a sales channel
  

AffinityMail is compatible with Gmail, Yahoo! Mail, Hotmail, Internet Explorer and Firefox, and will let you:

• Give your fans the opportunity to brand their emails with your branding for free
• Acquire new supporters via peer-to-peer referral
• Drive increased sales and donations
• Drive increased web traffic
• Measure, track, and quantify your audience