Email, Messaging, & Video Calls > Email How to Mark a Message Unread in Yahoo Mail Mark emails read or unread By Heinz Tschabitscher Heinz Tschabitscher Writer University of Vienna A former freelance contributor who has reviewed hundreds of email programs and services since 1997. lifewire's editorial guidelines Updated on June 1, 2021 Tweet Share Email Tweet Share Email Email Yahoo! Mail Gmail What to Know In the inbox, right-click the message and select Mark as Unread, or select the check box next to the message > More > Mark as Unread.To mark multiple emails as unread, select the Select Message drop-down arrow, choose All, then mark the messages as unread.Change how long until marked as read: Go to Settings > More Settings > Viewing Email. Choose an option under Mark as read interval. You can manually mark emails as read or unread in Yahoo Mail. We show you how to mark a read or opened message as unread, and how to change the settings that determine how long before an opened message is marked as read. How to Mark a Message as Unread in Yahoo Mail If a message is marked as read, but you want it to appear as unread, change it manually. There are two ways to do so. Right-click the email message you want to mark unread and select Mark as Unread. Alternatively, select the check box next to the message, select More, then choose Mark as Unread. To mark multiple email messages as unread, select the Select Message drop-down arrow, choose All, then mark the email messages as unread. Change How Long Until Message Is Marked as Read The default Yahoo Mail settings will mark any opened message as read—eventually. How long it must be opened before being marked as read—if at all—depends on a setting. Here's how to change how long an email must be open before it is marked as read. Log in to your Yahoo Mail account. Select Settings (the gear icon). Select More Settings. Select Viewing Email. Select an option in the Mark as read interval section. The options are: ImmediatelyAfter 2 secondsAfter 5 secondsNever If you select Never, emails remain marked as unread even after you have read them. Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day Subscribe Tell us why! Other Not enough details Hard to understand Submit