I have an iPhone 4 and it's been receiving email kind of late, meaning if I make a purchase, at let's say Macy's on my phone, I won't receive the confirmation email immediately; my question is my iPhone maybe hacked? I read that that's one symptom...

It could just be the Macy's itself or the internet connection. If that's not the case you can always restore your iphone on itunes.

Alejandro,

Send yourself a test message and see what the response time is.

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Is your e-Mail system a push type or a poll type.

If it is a polling type, there will be a delay because there is a timed polling sequences (that you can control to a degree)

In Settings/Mail look for 'Fetch' to see how it is setup.

-Alan