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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?
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Here's what to do:Create a new document in Microsoft Word. Paste in the content for your email. Drag the PNG into the Word Document. Arrange and place the PNG where it will appear in the email.
PNG files support transparency, but JPGs do not. If you save a PNG image as a JPG file, the JPG format doesn't know what to do with the alpha channel. That's why all the transparency turns into an opaque white background instead.
What's a PNG file? A Portable Network Graphic (PNG) file is a raster image that uses lossless compression. That means that PNGs retain all their original file data when compressed, so they can contain a great deal of image detail. They also support opacity and transparency.
I've figured it out. I think that most will support PNG. I think that outlook 2003 used to have that problem because it was using the IE rendering engine. Nowadays, PNG is fairly acceptable. BUT, be a little careful with alpha transparencies.
But anyway, litmus has been the best thing i've used thus far. So, I suggest to use that if you are very serious about testing on all available platforms
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