>>When sending e-mails from the thread, how can I specify several people? I tried yesterday to send message to me and my friend using semicolon, but I didn't receive that message and I'm afraid, my friend didn't either. And I forgot this thread already, though it was very important for her problem.
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>You may go one person at a time. That will work for sure.

I understand that, but it's slightly inconvenient. What kind of a delimiter do you use? May be comma instead of semicolon?