1.     Open Fax Voip FSP Control Panel. Click E-mail in TreeView, then click SMTP. On the SMTP settings page, select the Enable OAuth 2.0 Modern Authentication checkbox.

2.     Click E-mail in TreeView, then click POP3/IMAP. On the POP3/IMAP settings page, select the Enable OAuth 2.0 Modern Authentication checkbox.

3.     Click E-mail in TreeView, then click SMTP, then click OAuth 2.0. On the OAuth 2.0 Settings (SMTP) page, select Use this OAuth 2.0 configuration for POP3 / IMAP checkbox. Select Yahoo.com (Thunderbird) option from the drop-down list, and then click <Load Profile> button.

4.     In the E-mail Address text box, enter e-mail address associated with your Yahoo! account. In the Open authorization request in this browser area, select either Internet Explorer or WebBrowser (.Net). Click <Get Refresh Token> button.

5.     In the web browser window, on the Sign in using your Yahoo account page, check that the correct e-mail address is entered, and then click Next.

6.     On the next page, enter your password and click Next.

7.     On the next page, click Agree to confirm the requested access to your Yahoo! mailbox.

8.     Make sure the Refresh Token has been generated successfully. Click <Apply> button to save your settings and Refresh Token.

9.     Click E-mail in TreeView, then click POP3/IMAP, then click OAuth 2.0. To use 2 different e-mail accounts for outgoing and incoming e-mail messages, uncheck the Use OAuth 2.0 settings configured for SMTP checkbox, and then repeat steps 3-8 for OAuth 2.0 Settings (POP3 / IMAP).

10.     Click E-mail in TreeView, then click SMTP. Make sure the following settings are configured:

Enable OAuth 2.0 Modern Authentication: YES

Send e-mail method: SecureSmtpClient

Sender's e-mail address: the e-mail address associated with your Yahoo! account

SMTP Server: smtp.mail.yahoo.com

Port: 587

My server requires a secure connection (SSL): YES

SSL Mode: Explicit (STARTTLS)

My server requires authentication: YES

Login: the e-mail address associated with your Yahoo! account

Click <Test> button to send test e-mail message, see also Testing e-mail sending.

11.      Click E-mail in TreeView, then click POP3/IMAP. Make sure the following settings are configured (POP3):

Enable OAuth 2.0 Modern Authentication: YES

Account type: POP3

Incoming Mail Server: pop.mail.yahoo.com

Port: 995

My server requires a secure connection (SSL): YES

Login: the e-mail address associated with your Yahoo! account

Click <Test> button to test POP3 connection, see also Testing POP3 / IMAP Settings.

12.      To use IMAP protocol to receive e-mail messages, use the following settings:

Enable OAuth 2.0 Modern Authentication: YES

Account type: IMAP

Incoming Mail Server: imap.mail.yahoo.com

Port: 993

My server requires a secure connection (SSL): YES

Login: the e-mail address associated with your Yahoo! account

Click <Test> button to test IMAP connection, see also Testing POP3 / IMAP Settings.

Notes

• As an 'OAuth 2.0 Application', we have used Client ID / Client Secret pair imported from the Mozilla Thunderbird e-mail client (the source codes are available at this page). Alternatively, you can create your own 'OAuth 2.0 Application', see instructions on the Yahoo website.

• To configure SMTP, POP3 and IMAP with Yahoo! using Basic authentication, you should generate the App Password from Account Security. The App Password should be then used in Fax Voip FSP settings instead of the main password for your Yahoo! account. Please note that this feature may not be available for newly created accounts.