sparrowmail:

Sparrow 1.5 is here. It brings 3 of the most requested & awaited features!



First. Dropbox. 

Drag, drop, send (and sync). Sending a mail with attachement has never been simpler. And without even noticing it, you are syncing your files in the cloud making sure you never lose them.

Dropbox



Second. Block remote images.
Keep control of the images displayed in your mail: once or always. 

Block Images



Third. Search. 

With it’s new smart search & Gmail-like tokens, find the mail you’re looking for in a matter of seconds.

Search



Already a Sparrower? As always, this update is completely free for you. Check for update or visit the Mac AppStore and enjoy the new features.

If you’re new to Sparrow, you can get the lite version here or get the full version for $9.99.

Best mail app for OS X if you use GMail.