Huge improvement to this app with SpamSieve, Dropbox, and Evernote integration. Macworld gave it only 3 stars, I think that is really unfair. Airmail has come a long way since it started, and the developer has been very responsive to requests. It is a superior alternative to Apple Mail.

There are lots of e-mail apps and I've tried most of them. This is the most promising of the bunch so far. Some charge a lot of money but they do not do anything differently than Apple's Mail does. This app is only $1.99 !

This is by far the best app for retrieving multiple gmail accounts.
The interface is a lot more flexable than the Apple mail client and gives me all my available mail. The Apple client doesn't seem to play well with gmail any longer and you have to retrieve your email multiple times to get it all. I alo used MailPlane for a few months but this app is a better value.

Why people are giving this poor reviews without using the program is just dishonest and misleading. For $1.99 it's the best mail app out there.

It’s worth every penny and the best choice to Apple Mail

Sure, it’s not the perfect client yet but the plot thickens.

The GUI is one of the best for me - very stylish. I tested four clients besides Airmail now - Mozilla Thunderbird, Microsoft Outlook 2011, Unibox and Mail Pilot. Furthermore Airmail it’s the fastest and lightest client.

I had many problems to transfer emails from Apple Mail to Airmail. I forgot to say that I changed my iCloud account, too. Now I’m using a German account again because of the security. Everytime Airmail crashed when starting the import process. I tried the beta version, too. I suggest you to create the new account in Apple Mail. Within this application you don’t have to export something else. Just drag and drop messages, folders etc. between the accounts. In my case I transfered all my messages in minutes to my new server without losing any data.

By the way, working with attachments is much nicer. Apple Mail inserted attachments somewhere in your emails. Airmail inserts everything at the end. So you’ve a better overview, especially when attaching several files.

I still miss server-based rules and category colors.

Most everything good about Airmail has already been said here, but I'd like to just add my five stars to what I think is a really solid contender for best email app available for the Mac.

It's Gmail-centric in that it ties to every component of a Gmail or Google Apps account WRT to email and contacts. In fact, during the past week I've tried the top Mac email apps available and I've been very disappointed in most. The list I tried were Airmail, Inky, Unibox, Postbox, Thunderbird, and the newest version of Mail Pilot.

Some of these don't link to contacts at all, especially Google Contacts, forcing you to export/import to get your contacts into them (deal-breaker for me). And Airmail was the *ONLY* app that allowed me to start typing the name of a contact group in Google Contacts and it pre-filled the address field with that group. I simply couldn't live without that feature as I send email to many different groups.

Airmail is also the only app I tried with a very long list of fonts and font sizes available for both the message composer and signature, allowing me to create useful signatures that people can read, but still be in a font that I like.

I suppose like any app, everyone mileage will vary, but I'm an email/Gmail addict and I love Airmail. (Disclaimer: I don't know the developer and have never interacted with them. These are simply my impressions.) Over all the years I've used a Mac I have relied very heavily on the opinions of users here in MU before buying an app...so hopefully I can pay it forward a little bit with this review.