emptying jammed mailbox by PHP?

hi, maybe not the most professional way but my mailbox is jammed and i want to clear it. My ISP host is doing some office refurnishing and needs all his attention to pick the right color hues. So i thought maybe i can send a simple POP command to delete all mails in the mailbox? It's 14000 mails since last thursday! Maybe using mr Lemos' POP script class? My email client eudora complains it cannot get a 'lock'- mailbox in use. This can be the mail subsystem thingy keeping sending itself a warning email. Ideas? BTW PHP on the server is running in safe mode, Chris