Follow these steps to do so:
1. Open your Apple Mail client.
If you were not prompted with the "Welcome to Mail" screen, select
"Mail" | "Preferences," then click the plus icon on the "Accounts" tab.
2. Enter your name, email address and password into the appropriate
fields.
3. Important: Hold the "Option" key down until "Create" turns into
"Continue" and then click the Continue button.
4. Release the "Option" key.
5. Select "POP" from the Account Type menu.
6. Fill out the "Description" as you see fit, such as "My Yahoo!
Account."
7. Enter "plus.pop.mail.yahoo.com" in the Incoming Mail Server field.
8. In the "User Name" field, enter your Yahoo! ID.
Please note: Your ID is typically your email address without the
"@yahoo.com", however, this rule does not apply to "@ymail.com" or
"@rocketmail.com" addresses. If you have either a "@ymail.com" or
"@rocketmail.com" address, be sure to enter the entire email address as
your ID.
9. Enter your password.
10. Important: Hold the "Option" key down until "Create" turns into
"Continue" and then click the "Continue" button.
11. Check the "Use Secure Sockets Layer (SSL)" option and select
"Password" for the Authentication.
12. Important: Hold the "Option" key down until "Create" turns into
"Continue" and then click the "Continue" button.
13. Enter "plus.smtp.mail.yahoo.com" in the Outgoing Mail Server field.
14. Check "Use Authentication", and then enter your user name and
password.
15. Important: Hold the "Option" key down until "Create" turns into
"Continue" and then click the "Continue" button.
16. Check the "Use Secure Sockets Layer (SSL)" option and select
"Password" for the Authentication.
17. Press the "Create" button.
18. After Mac Mail is launched, select "Mail" |"Preferences," then
select the "Accounts" tab.
19. Select your Yahoo! Mail account.
20. Change the Port to 995.
21. Click the red icon in the top-left corner to confirm and save the
changes.
You should be able to retrieve emails from your Yahoo! Mail account now.
If you receive any authentication issues while using the above server
names, you may be able to bypass the issue by using our alternate server
names.
To use the alternate server names, use the steps listed above and
substitute the following information:
For POP server name:
pop.mail.yahoo.com
For SMTP server name:
smtp.mail.yahoo.com
Once you have completed the steps, I suggest closing Mac Mail and
opening it again before sending or receiving messages.