It will not be possible to receive e-mail to any 14850.com (or related) address, retrieve mail from the mail server, or send mail via that mail server during the time of the outage tonight. All mail that's sent to us during the outage will reach us after power is restored and the servers are back online.
If you have other e-mail accounts, you may be able to configure your e-mail software to send messages through those other accounts. For example, I can set Mail or Eudora to send my 14850.com messages via my Cornell or Gmail account. (In the case of Gmail, you need to configure Gmail to know that your 14850.com address is allowed to do so.)