Read the article to learn more about the usage of OAuth2 with Sendmail in a Linux environment. As part of our Server Management Service, Bobcares provides answers to all of your Sendmail questions.

OAuth2 with Sendmail in Linux

An authentication system called OAuth2 (Open Authorization 2.0) is frequently used to access web services, including email services. Without disclosing their email passwords, users can provide applications access to their email accounts. OAuth2 uses tokens to give access rather than the email account’s username and password directly. Modern email applications and services like Gmail and Outlook make use of this, which is particularly crucial for security.

A more contemporary email client or program would likely be used to manage the OAuth2 authentication process if we want to use OAuth2 for email authentication in a Linux environment. Then, using industry-standard email protocols like SMTP or IMAP, this client or program will speak with the email server (like Sendmail).

Steps Needed

1. Initially, we must use an OAuth2 authentication-compatible email client or application. Among the most popular options are Mozilla Thunderbird, Evolution, and Mailspring.

2. Set up OAuth2 for the email account in the preferred email client. To give the client access to the email account, we will normally be asked to sign in with the email provider (such as Gmail or Microsoft). Obtaining an access token and a refresh token is necessary for this operation.

3. Sendmail will still need to exchange emails with the email client in order to send and receive emails. The email client will be set up to use the proper SMTP and IMAP settings for the Sendmail server.

4. Lastly, make sure that the Sendmail server is securely configured and that only authenticated users (even if they are authenticated using OAuth2) are permitted to send an email.

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Conclusion

To sum up, our Experts went over the details of using OAuth2 with Sendmail on the Linux environment in this article.