GmailDockAttach is described as 'small OS X app for ultra-fast composing Gmail messages with attachments. Just drop a file ar whole folder on GmailDockAttach icon on your Dock and in few seconds browser will open on new message (with attached files). Try this below!' and is an app in the Office & Productivity category. There are more than 10 alternatives to GmailDockAttach for a variety of platforms, including Mac, Windows, iPhone, iPad and S/MIME. The best alternative is Microsoft Office Outlook. It's not free, so if you're looking for a free alternative, you could try Apple Mail or Microsoft Mail and Calendar. Other great apps like GmailDockAttach are The Bat (Paid), Polymail (Paid), MailMate (Paid) and WunderMail (Freemium).