I have walked through the configuration steps from "The Perfect Debian Sarge Setup) and found nothing wrong from that viewpoint.
I also looked in lost+found and there was nothing.
Assuming that some random file was damaged in the power outage, would it be harmful to actually go through the steps in "The Perfect" section for Postfix?
In order to install Postfix with SMTP-AUTH and TLS as well as a POP3 server that also does POP3s (port 995) and an IMAP server that is also capable of IMAPs (port 993) do the following steps:
apt-get install postfix postfix-tls libsasl2 sasl2-bin libsasl2-modules ipopd-ssl uw-imapd-ssl (1 line!)
Or are there better directions to go?