As Gary said, knowing your email client would help. There is a serious amount of help out there with google. If you are using Microsoft Office with outlook, there are dedicated forums for just outlook issues. Lots of other sites that have heaps of members who are extremely helpful in this regard.
Here are just a few, when you do a google search a lot more will come up.
http://www.sevenforums.com/
http://windowssecrets.com/forums/
http://www.windowsbbs.com/
https://forums.slipstick.com/
http://www.bleepingcomputer.com/forums/
http://windowsbbs.com/