How to view and edit snoozed emails
When you snooze an email, it will be archived to your -Snoozed or -Snoozed/Follow-up folder until the reminder date.
To edit the date and time of a snoozed message, go to your -Snoozed or -Snoozed/Follow-up folder, open the message you want to edit and click on the blue snooze icon (clock) at the very top side of your email.
Cancel the reminder date:
and select the new time at which you want your email to be snoozed.