My provider (Planet Internet) offers to scan your incoming mail for virusses. This scanning is done server-sided, and costs you 1.95 EUR each month, for each mailbox. (More info in Dutch)

Personally, I love the idea. I think it'll reduce the amount of virus-infected mail (and right now, 1 out of each 12 messages contains a virus, according to Pine Internet BV).

This scanning thing has been introduced a couple of months ago, and since Planet is one of the larger ISP's in the Netherlands, I'm assuming it's one of the first to implement such a service. Two questions:
  • Does your ISP offer a similar service?
  • Would scanning all mail reduse stress on a ISP's abuse- and helpdeskdepartments enough to actually make it profitable for them? Or: would the investment in a 'mailserver-scanning-server' (and it's maintenance) be profitable in the long run?