When you add your AOL account to an e-mail client, you should also configure the outgoing and incoming server settings. POP3 (Post Office Protocol) is one of the incoming server protocols used by e-mail clients to retrieve mails from the mail server. When you configure your AOL account with the POP incoming server, you can access the e-mails offline. Synchronizing your AOL account with the POP protocol enables you to download a copy of your e-mail from your AOL mail account. Moreover, if you delete an e-mail from your AOL account, a copy of the downloaded e-mail remains in the app. If you want to configure your e-mail client with POP server settings to connect with your AOL mail, navigate to the server settings of your e-mail client and update the outgoing and incoming server settings as mentioned below.
Now, you have successfully configured your AOL mail account with the POP server settings.