Exchange 2010 Sending Newsletters?

Hello,

We currently have an SMTP Windows 2008 R2 server that is used to send out newsletters to large number of recipeints (15,000). Occasionally there are issues with the service so we are looking at different options.

Would Exchange 2010 be a good solution or should we look at some third party software. The only function of this server is to send out newsletters and other information to the recipients.

Thanks