Some time ago, cystitis
I wrote a small program to run from cron that would send me a sms if I had unread emails (after checking your non-SSL imap server) from people in a whitelist file, people like my colleagues and my boss. Since it has proved to be useful to me, here it is! System requirements are at least P4 or AMD64 with 1gb of available ram and 1.5GB disk storage.
( txt-mail.tar.gz )