Have 190 smileys at your disposal for your emails.
Add-in for Microsoft Outlook that facilitates synchronization between Google accounts and Outlook.
Get notified every time an email arrives in your Gmail inbox.
Email and calendar management software that lets you manage multiple email accounts and calendars in one place.
Tool that allows you to view and extract attachments from email messages stored in Outlook PST files.
Program that protects you from suspicious attachments, javascripts, etc.