What do these attributes have to do with the updating of global address lists?

1.msExchAddressBookFlags

2.msExchModerationFlags

3.msExchProvisioningFlags

and what exactly happens with showInAddressBook when hide from address lists are selected or unselected?? 

Hi,

See below for your questions.

https://social.technet.microsoft.com/Forums/en-US/fcccbcd8-121a-4f1f-b480-b7d8946d5d2a/msexchaddressbookflags-attribute-what-is-it?forum=exchange2010

https://itgeekspeak.wordpress.com/2012/11/15/msexchmoderationflags-values/

http://support.microsoft.com/kb/2790827

http://support.microsoft.com/kb/253828

Hi,

1. MSExchAddressBookFlags attribute is a flag about the default address list to display for Outlook users address lists. When the value is set to 0, the user would set Contacts as the default address list, when the user opens Address Book, it firstly displays users Contact.

2. MsExchModerationFlags attribute on the Distribution Group indicates if sending the auto approval to senders.

3. About the msExchProvisioningFlags attribute, there is no official article explaining it. Your understanding will be appreciated.

Hope this can be helpful to you.

Best regards,