Short answer: If you're safe, except not if you are sending to lots of hotmail users.
What can I expect?
You can expect most email programs, including web-based email readers, to render most of your styles correctly, if you follow some simple rules:
- Avoid linking to external stylesheets. Most email clients will strip them.
- Put the style in the body section of your email. That's because many clients will strip out the head section completely.
- Do not use generic "class" styles like
in your styles. The dot gets hacked out off the beginning by some. Instead, be explicit like
to define exactly what tag will get the class.
- Do not rely on your stylesheet for your message appearance.
- Avoid positioning. It probably just won't work.
- Don't style the body tag. It might get stripped out too. Instead wrap your email in one big div tag with your style on it.
- Use care if you style the hyperlinks or add hovering behavior. Add a custom class to all your a tags or you may conflict with a webmail client email reader.
That's really the long an short of it from what we've gathered. Here's a great technical page describing the gory details...
Of course, you should always follow some other practices when you are composing any project for your email blast software: