This Message Has No Content - Web sometimes new messages come in and mail (on os x lion and mountain lion) shows them as empty, with this message has. Find the option for ‘rich text’ and disable it. Mail would come into apple mail and it would show the sender, the subject, but below that it would simply say. Go back to mail and try opening the email. The message you want to. Run outlook in safe mode. Assuming you mean you're using the macos mail app. Web go to settings > mail.
The message you want to. Find the option for ‘rich text’ and disable it. Web sometimes new messages come in and mail (on os x lion and mountain lion) shows them as empty, with this message has. Web go to settings > mail. Run outlook in safe mode. Go back to mail and try opening the email. Assuming you mean you're using the macos mail app. Mail would come into apple mail and it would show the sender, the subject, but below that it would simply say.