GetDomainAllUserLastLogin()
From Rackspace Email & Apps API
This function will report the date of the last login for all mailboxes on a domain. POP3/IMAP/Webmail logins are all considered a login (not SMTP Auth). Last login information is recalculated nightly-- so the most recent login should generally be yesterday's date on an active account.
Input Parameters
Three strings, one result array:
Administrative username, Administrative password, Domain name,
Last login array (as in: list[0]="user1, month/day/year hour:minute:second AM/PM",list[1]="user2..."...)
Return Values
If successful, the return value of the function will be 1.
Consult the Result Code Table for a list of result codes and their meaning.