What is the mail client with notification?

Question

Mail client

Hello. We need such an email client for managers in a company so that it has a notification about a new letter, like in Skype. You do not know such an email client or maybe a plugin?

Answer 1

You can use Thunderbird+New Mail Attention addon
https://addons.mozilla.org/en-us/thunderbird/addon...

Answer 2

the bat can
gmail can through the plugin in chrome + also shows pop-up messages