IMAP settings are also called AOL incoming mail server since they are used to recover emails from the AOL mail server. Your emails are saved on the server and when you check your maildrop, the server fetches your messages. 
AOL IMAP Settings IMAP Server Address – imap.aol.comIMAP Username – abcd@aol.com (your AOL email address)IMAP Password – xyz@123 (your AOL password)IMAP Port – 993 (SSL)
For more detailed processes go with the AOL IMAP settings for Outlook.
https://www.errorsdoc.com/email-support/aol-email-setting-for-outlook-android-iphone-ipad-imap-pop3-smtp-settings/