I do exactly this too for the occasional mail that I really can't read as plain text.
One concern is that I'm letting through all web bugs and, perhaps, outright malicious HTML. If anyone has a solution for that, something like filtering the HTML, I'd love to hear it.
One concern is that I'm letting through all web bugs and, perhaps, outright malicious HTML. If anyone has a solution for that, something like filtering the HTML, I'd love to hear it.