Messages not deleted from server

[Taillandier]

Hello
I have a little problem with my Windows account ( mail server = pop3.live.com - port = 995 - Use secure connection = checked ) : spamcombat found a message, deleted it ( spam ). In deleted item list, the status of this message is S: Bayesian: 100
But when I launch Windows Live Mail and check my box, the message is downloaded.

Can someone tell me why ?

Sincerely.