Whenusing Password Change Web Part, the expiration notification emails are alwayssent to the older email addresses. How can I fix it?
Firstly, please navigate to All People page (http://siteurl/_layouts/15/people.aspx?MembershipGroupId=0) to check the user’s email address and ensure the address is updated in this list.
If you already change the user’s email address in active directory, and the changes is not updated to SharePoint, please try this PowerShell command line to update the changes.
Get-SPUser -Web http://web-app-url | Set-SPUser –SyncFromAD
Applies for: SharePoint 2019, SharePoint 2016, SharePoint 2013, SharePoint 2010