SharePoint User Information list is not being updated | Donal Conlon
Turns out that SharePoint and have different setup for the defaults of the User Profile store. In our environment we went with the out of the box setup for the profile map to AD and so we did the same in setting up In the work email field was mapped to the mail property in AD. In it was mapped to the proxyaddress property.
Site Collection Users List Out of Sync with the User Profile Store
As per the Name SharePoint User Information List stores information about a user by having some metadata set up for the user. When we grant any user permissions to a user, they are added automatically to the hidden User Information list a new item will be created in the User Information List storing some information about the user. Even though if we grant access to any active directory group the group gets added to the hidden User Information list as well but the user does not get added until they access the site. It has been changed little bit in SharePoint As it shows user in list as soon as I give them permission to site regardless of they logon or not.
Posted by ieDaddy Feb 7, SharePoint 1. We had a situation which may be fairly common in organizations where SharePoint adoption is a slow process and not always well thought out. Specifically we had a series of sites that were early adopters before all the bells and whistles within SharePoint could be enabled. Both full and incremental profile imports were run multiple times; However, the User Information Lists appeared to remain in an unsynchronized state for a handful of accounts.