SharePoint 2010 Web Part expose web service?

Is it possible for a SharePoint 2010 Web Part 开发者_StackOverflowto expose a web service (WCF?)?

I want a Web Part to send emails if a certain condition is met. The web part should be hit every 15 mins via a call initiated from a custom in-house scheduler.

Cheers

---

A web part is just a visual component. It can expose a web service. However, custom web services can be created and deployed to SharePoint where you can access data from a site (a list maybe) and add custom logic to send the email.

Here's a good guide on how to deploy web services to SharePoint.