qmailcheck does one thing many times: looks for new mail in your IMAP mail boxes. If you get a lot of mail and split them into separate boxes (typically on the server side using procmail or sieve), then checking all the boxes can be tedious looking for important mail. qmailcheck solves this by:
The following is a screenshot, with the email-addresses wiped out to protect the OCR enabled spammers from lawsuits:
Download releases from the download page
Or get the source directly from github.