The use of Post Office Protocol (POP) mail service provides you with the ability to gather mail from your mail server to your computer in email applications. This allows you to read your email without opening your Internet browser and may provide access to some mail while no Internet connection is available. Yahoo supports the use of POP email for consumers who subscribe to their Yahoo! Mail Plus service.
Yahoo! Mail Plus
The Yahoo! Mail Plus service provides subscribers with email forwarding, larger message size limits, disposable addresses, no advertising and POP access. The service, as of June 2011, costs just under $20 per year. Consumers not wishing to purchase this service can use Yahoo! Mail Classic, but they cannot access their Yahoo! email using a POP3 client.
Any third party email client that supports the POP3 protocol should be able to communicate with the Yahoo servers. Common clients include Microsoft Outlook, Outlook Express, Entourage, IncrediMail, Eudora and Mozilla Thunderbird.
The Yahoo! Mail Plus POP server is pop.mail.yahoo.com. This server uses Secure Socket Layer (SSL) over port 995 for incoming mail. The use of SSL encrypts your mail to protect your privacy. Outgoing mail uses the Simple Mail Transfer Protocol (SMTP) from the server smtp.mail.yahoo.com. Outgoing mail uses port 465 for SSL communications. You must know your full email address and password to configure your email client.
Yahoo provides specific instructions for many client applications to guide users through POP3 mail configuration step-by-step on their website. In addition, the Yahoo! Mail Plus subscription provides access to live customer care services you can access through your Web browser after logging in.