Email, Messaging, & Video Calls Email How to Access a Free Yahoo! Mail Account Using YPOPs! by Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated on March 30, 2019 Carlina Teteris / Getty Images Email Yahoo! Mail Gmail Tweet Share Email Using YPOPs!, you can set up Yahoo! Mail in Mozilla Thunderbird. Of course, web-based access to Yahoo! Mail is indispensable. It is also universal, easy and useful. It is not, however, all that Mozilla Thunderbird is. If you want to use Mozilla Thunderbird to read and write your Yahoo! Mail messages, YPOPs! provides a smart manner of access as an alternative to the official IMAP and POP interfaces. Access a Free Yahoo! Mail Account in Mozilla Thunderbird Using YPOPs! To set up a free Yahoo! Mail account in Mozilla Thunderbird: Install YPOPs! and make sure it is running.Select Tools > Account Settings... from the menu in Mozilla Thunderbird.Click Add Account....Make sure Email account is selected.Click Continue.Enter your name under Your Name:.Type your Yahoo! Mail address ("firstname.lastname@example.org", for example) under Email Address:.Click Continue.Make sure POP is selected under Select the type of incoming server you are using.Type "localhost" under Incoming Server:.If you use Windows Vista or run into troubles later, try using "127.0.0.1" instead of "localhost."Click Continue.Enter your Yahoo! Mail user name (e.g. "example") under Incoming User Name:.Mozilla Thunderbird should already have entered that for you.Click Continue.Type a name for your new Yahoo! Mail account under Account Name: (e.g. "Yahoo! Mail").Click Continue.Now click Done. Store Your Sent Mail in the 'Sent' Folder To make sure we can send mail in addition to receiving it (and optionally have a copy of all send messages stored in Yahoo! Mail's online Sent folder): Highlight Outgoing Server (SMTP) in the list of accounts on the left.Click Add....Type "localhost" under Server Name:.If you use Windows Vista or run into troubles later, again try using "127.0.0.1" instead of "localhost".Make sure Use name and password is checked.Type your Yahoo! Mail username under User Name:.Click OK.Highlight the Yahoo! Mail account we created before.Under Outgoing Server (SMTP):, make sure localhost is selected.Click OK.