Email Services/Office 365/Known Issues

• If a potential pilot user has delegates, all delegates MUST also be moved to Office 365 in order to retain that level of mailbox access.

• Pilot users will see an *incomplete* directory listing (GAL) - any users with their mailbox associated with a child domain account will NOT be visible to pilot users (a pilot user in Office 365 will not be able to “look up” a user with a mailbox associated with a child domain account; however, this does not prevent the pilot user from sending or receiving email to/from that user)

• Free/Busy calendar time for users with their mailbox associated with a child domain account will NOT be visible to pilot users - this does not prevent scheduling meetings, but it will be difficult without knowing availability.

• During the migration process, you should not expect any interruption in mail access or service. After your migration has completed, you may need to reconfigure your mail client or mobile device. The following documents will outline that process for the Laboratory's most frequently used mail clients and mobile devices.

• Office 365 users will not have access to Public folders. We are investigating the fix below as an option
  • https://technet.microsoft.com/en-us/library/dn249373(v=exchg.150).aspx

• Mailboxes with a large number of folders and subfolders will take much longer to migrate, as data for each folder must be verified and compared with the source after data migration. Any efforts to clean up unneeded mailbox clutter before migration will help reduce this effect

• Users with subdomain email addresses as their default email address recieve undeliverables when sending to external recipients. The workaround is to configure their mail client to send through smtp.anl.gov instead of smtp.office365.com. A ticket has been opened with Microsoft to determine the cause of this problem.