I hope anyone can assist.. I am getting multiple complains from iphone/ipad users for not be able to preview the email message. These recipients gets this message:

“This message cannot be displayed because of the way it is formatted. Ask the sender to send it again using a different format or email program. text/html”

I use iphone 4 and I can preview those emails.

I found some articles, see below for your reference.

If this happens to you, you can work around the problem by first deleting your message. Then go
find the message in your trash and move the message back to your in-box. You should now be able to read the message properly.
Apparently this was an issue with iOS 3. It was fixed in iOS 4. Unfortunately the bug seems to be
back again in iOS 5.

I ran a test “Test: Barb, Fall Promotion Just Launc…” in litmus for your reference.

Thank you

-- DC