Is there support for PNG alpha transparency for popular email clients? Here are the list of major e-mail clients i'm planning to support: Web based* Gmail Hotmail Yahoo Software based Outlook 2007/2010 Windows Mail Mac OSX Mail Thunderbird Mobile based iOS Device Mail Android Device Mail * This is browser-based, so no need to worry about this From the research i've done, it seems all (mobile-based isn't listed, but i checked my phones) support PNG ( http://en.wikipedia.org/wiki/Comparison_of_email_clients#Messages_features ). But, I'm unsure as to whether or not they support transparency. Anyone have any good insight into this?

PNG Alpha transparency in email

Is there support for PNG alpha transparency for popular email clients?

Here are the list of major e-mail clients i'm planning to support:

Web based*

Software based

Mobile based

*This is browser-based, so no need to worry about this

From the research i've done, it seems all (mobile-based isn't listed, but i checked my phones) support PNG (http://en.wikipedia.org/wiki/Comparison_of_email_clients#Messages_features). But, I'm unsure as to whether or not they support transparency. Anyone have any good insight into this?