Is there a standard size(width) for email newsletter design or something like a christmas e-card?

Question

I have to design this e-mail newsletters. Some with just simple holiday cards and some more complex with offers and other stuff (images, text content etc.). I am wondering if there is a safe standard *width* to work at?

Answer 1

The standard width for email newsletters is 600px to ensure that all email clients can render the email newsletter correctly.