I think that there should be a way to insert contact field data in the email subject line (I'm talking about mail merge function).
For example, "Dear Mr. <Last name>".
It's very useful when you want to make personalized mailing. For example, you have an e-mail address of some company and you need to rich it's CEO. So, your e-mail message shouldn't seems like spam to office manager.Try to emagine how to do this for hundreds of contacts manually)))