I have been using Outlook 2007 for almost a year now and I have a love/hate relationship with it. One Bug that happens is when you reply to someone when they, for whatever reason, sent you an e-mail in plain text. It is nice that it returns it in the same format.  But it forgets to spell check.

If you use Outlook 2007 and plain text format, be aware there is a bug in"Always check spelling before sending." The spell check on send appears to work but in reviewing the Sent item and the copy the recipient receives, the misspelled words remain misspelled. This only happens on plain text messages, not HTML or RTF. Correcting the errors as you type or by doing a manual spelling check (F7) works as expected; only the automatic check initiated when you press Send doesn't work.