A client we just set up is using an enormous amount of POP3 traffic, 3 to 5 gig per day. At first I thought this may be because of a spammer but there is nothing out of the ordinary in the number of e-mails in the e-mail queue. Also, this is POP3 (incoming) not SMTP (outgoing). Anyone know how this could be happening? I've attached a screen dump of his traffic for this month. He's only been online for two weeks. Any help/thoughts/suggestions appreciated!