Configuration of Outlook & Thunderbird

How to configure a email client

Google warns us of a possible security weakness when we use an email client, such as Outlook or Thunderbird. This is understandable, because we are extending the delivery of mail by an intermediary, but also because Google cannot certify the security of software that it does not control.

That’s why, by default, Google does not allow these clients to be used in any Google Suite business account, which includes all “” and “” accounts.

It should also be noted that the presentation and functionalities of the gmail interface, especially in its professional version, are particularly advanced and practical.

Nevertheless, some of us will prefer to use a client to which they are accustomed. No problem, if you follow the following procedure:

Give Google your consent

Google requires that you activate yourself the use of a less secure software.

  1. Log in to your new account on the email page.
  2. At the top right, you will find a circle with, no doubt, the initial of your first name. Click and select Google Account .
  3. On the next page select, in the first column, Connection and security .
  4. Almost at the bottom of the page, activate “Allow less secure applications” setting.
  5. Return to the email page, then click on the gearwheel at the top right and select the Settings menu.
  6. Select the Forwarding and POP/IMAP tab.
  7. In IMAP Access, select Enable IMAP, then, at the bottom of the page, Save Changes.

Configure your client

You can now create a new account in your email client software using the following codes:

Server of incoming emails (IMAP)
SSL requis : oui
Port : 993

Server of outgoing emails (SMTP)
SSL requis : yes
TLS requis : yes (if available)
Requires authentification : yes
Port for SSL : 465
Port for TLS / STARTTLS : 587


Username: your complete email address
Password: your password