How many email addresses do you have? At the very least, most people have one for work, and another for home. Add in a "throwaway" address you use for shopping online, and another for your blog about puppies in Star Wars costumes and you're juggling four different inboxes. You could set all those accounts in Mail, but then you've got separate accounts to check, and separate folders to maintain for filing messages. Sparrow on your Mac and iPhone makes it easy to consolidate everything--and still maintain different addresses. Here's how.
I’ve always used Mail’s POP3 settings to manage my Gmail account,
and I’ve been able to remain a one-account guy. But the university
where I work wants me to use their servers for my work email. Mail
successfully synced up with the provided IMAP Account; however, I now
find my main inbox doing double duty. During a busy day, it becomes
difficult to separate messages at a glance. I can click on the message
and check the recipient, or click on the mailbox and do the
subtraction, but both of those are cumbersome. Worst of all, I also
find myself occasionally replying to messages using the wrong account.