A message I just sent - I'd included strikeout tags in, it previewed OK but when I sent it I got the message:

Only the B, CENTER, I, P, BR, FONT, A, U, LI, OL and UL tags are allowed in Message field.

I can't include the carats from the dialogue box as the above message would be ruined.

Now, we've all used these in the past successfully.

OTOH I like the feature of the previewed message staying on below, without having to click the update button.