I get this message on my phone:' You have received a message that cannot be displayed by the Mobile Email client. To read the email, you need to visit your inbox on your email providers web site".
I have Yahoo and Gmail. but this happen on Yahoo.
This has been happening to me for the past several months. There was a software update late May, and I believe it started around that time. I can read the first message, but when I reply and when the person replies to me, I get that message. If they send a "new" message, I can read it, but not "replied" messages. The original error discussion was in April and still hasn't been answered yet by Verizon? And they wonder why people want to switch? I haven't had any major problems with Verizon since I've had them (2005), but with the smartphone, it's becoming more and more common to experience minor annoyances.