Internet Message Access Protocol (IMAP) is a communication protocol used by applications and servers for retrieving emails from email servers. Email programs like Microsoft's Outlook and Mozilla's Thunderbird use this protocol to contact servers and download messages for local storage and viewing offline. It is widely used by most email service providers, including Gmail and Yahoo.
For more information, read the Wikipedia article. For technical information read the RFC 3501.
If you have a question that needs an answer, please contact support. Otherwise, please open an issue in our GitHub! Thanks for helping us improve our docs!