What app is better Apple Mail or Outlook for Mac 2011?

That question is likely to start a religious war 😉

I have Outlook at work and Mac Mail on all of my Macs and iOS devices...much prefer using Mail vs Outlook.

Mail.

Outlook is very cluttered and with so many things to do I easily lose track of the primary function - email.

I much prefer the cleaner less cluttered Mail approach. Calendars handled by Calendar rather than the email program, for example.

Perhaps in an enterprise setting Outlook might be preferred but you can still accomplish things like sharing using Mail.

It works better, especially with IMAP accounts (iCloud/Gmail etc).

If your mail server is MS Exchange use Outlook for it. For any other nail server use Appke Mail.

I like Mail better. However, the earlier versions were better because it had the "Bounce" feature.

As spammers don't use their own address to spam from all bounce ever did was increase the amount of spam in circulation. It was a wise move to dump it.

And, in fact, spammers took advantage of bounce features in both mail clients and mail servers. The would send mail to a known site that would bounce messages, but put millions of legitimate email addresses (forged) as the sender. So essentially the site or client that bounced messages would become a spammer inadvertently. This is known as "bounce back" spam, and it forced ISPs to stop bouncing messages on failed delivery.

I manage a listserv server; at its peak several years ago we were getting 500 messages to bounce an hour, and WE because labeled as a spammer by the major spam registries. We had to add sophisticated filtering to block the bounceback spam before it reached our mail transfer agent.