Nutzy the squirrelmail

I think you might be referring to Nutty the squirrel from the popular email client SquirrelMail!

Nutty is the mascot of SquirrelMail, a free and open-source webmail client. He's a cute and cheerful squirrel with a big smile and a love for nuts (of course!). Nutty has been a part of the SquirrelMail brand since its early days and has become a recognizable symbol of the project.

SquirrelMail is known for its ease of use, flexibility, and customization options, making it a popular choice among email users. And with Nutty as its mascot, it's no wonder that SquirrelMail has a warm and welcoming feel to it!