Yes, both the email2 Toolbar and email2 Web Client can be customized to meet your unique needs!

We recognize that not all groups find the same features useful and that certain groups require specific functionality. To this end, email2 works with a sort of 'modular' approach. Custom functionality can be designed either by third parties (through the use of email2's open API), or by us, and can be released as modules which will plug into the existing email2 platform. These modules can be something as simple as a basic survey engine, or they can be as complex and specific as an ordering/billing system. These modules can be implemented as part of the email2 Web Client through the use of email2’s open APIs, making the email2 system as a whole completely customizable.

//Edited June 2009