https://support.google.com/mail/answer/78892?hl=en-GB&authuser=8&ref_topic=7280141
Choose your IMAP email client settings for Gmail - Gmail Help
We recommend the settings below if you use IMAP to read your Gmail messages in another email client, such as Outlook, Apple Mail or Thunderbird. Outlook Open...
email client settingschoose yourfor gmailimaphelp