Moving from Exchange 2007 on premis to Modern Exchange:
https://www.youtube.com/watch?v=pZayV8gfbus
https://technet.microsoft.com/en-us/library/jj898581(v=exchg.150).aspx?f=255&MSPPError=-2147217396
Exchange Server Deployment Assistant from Microsoft:
Upgrade from Exchange 2007 to Exchange 2013:
https://technet.microsoft.com/en-us/library/jj898581(v=exchg.150).aspx?f=255&MSPPError=-2147217396
Exchange 2013 Client Access server configuration:
https://technet.microsoft.com/en-us/library/hh529912(v=exchg.150).aspx?f=255&MSPPError=-2147217396
https://technet.microsoft.com/en-us/library/hh529912(v=exchg.150).aspx
View or configure Outlook Web App virtual directories:
https://technet.microsoft.com/en-us/library/dd298140(v=exchg.150).aspx?f=255&MSPPError=-2147217396
Mailbox moves in Exchange 2013:
https://technet.microsoft.com/en-us/library/jj150543(v=exchg.150).aspx?f=255&MSPPError=-2147217396
Exchange 2013 Batch Mailbox Migration:
http://msexchangeguru.com/2014/07/28/mailbox-migration/
Third Party Mailbox Move Tool:
https://www.lepide.com/exchangemigrator/
How to Provision Recipients for Offline Address Book Downloads:
https://technet.microsoft.com/library/aa996345(v=EXCHG.80).aspx
Configure mail flow and client access:
https://technet.microsoft.com/en-us/library/jj218640(v=exchg.150).aspx?f=255&MSPPError=-2147217396
Exchange 2013 post-Installation tasks:
https://technet.microsoft.com/en-us/library/bb124397(v=exchg.150).aspx?f=255&MSPPError=-2147217396
Configure DNS records for Exchange 2007 and 2013 multiple-server install:
https://technet.microsoft.com/en-us/library/dn283988(v=exchg.150).aspx
Upgrade from Exchange 2013 to Exchange 2016: