Based on what Rufus said, the term "war with iraq" then is completely abused unless the word "at" is the word preceding. "The War with Iraq ...." suggests that war is just something to do and may or may not include others. "The drive with so-and-so to wherever..." Capitalizing the word "war" also suggests that "with Iraq" simply implies which of the great wars it is, which I do not believe it was worthy of recieving that demarcation.

From what I have seen of the usage of the term, the primary difference in grammar rules generally rely on the spelling, "e-mail" or "email".

It appears that most people who spell the word "e-mail" tend to use it closer to mail rules, and thus a letter is "an e-mail message". "I received an e-mail message from John". This also implies the use, as with mail, "I received e-mail from John".

The people who spell the word "email" primarily use it as refering to a specific thing. Used this way, then it is acceptable to use "I received an email from John" or "I received several emails from John". This still holds a little of its roots with the still acceptable "I received email from John".

I am far from a grammar expert, as may be apparent in my abuse without someone else proofreading what I type. I just thought I would throw in my two cents worth since this is about an online term.