Having successfully got the CVS Log integration working again for the XDoclet JIRA, I noticed that there were a number of mail messages accumulating in the relevant POP3 account. This is because the CVS commit logs are mailed to the developer's mailing list, and the other messages on the list aren't processed by the CVS Log (or any other) MessageHandler. However, the mailbox in question has a 20 Meg limit, and at some point in the future it will start bouncing messages if nothing is done to delete the extra messages. It would be nice, therefore, if there was a MessageHandler which deleted all the messages older than a specified number of days, so I could set up a service to clear out the surplus ones.