We have a small handful of Ex2010 SP3 servers, 6 in a DAG for the Americas and another single (non-DAG) in Poland. Any gotchyas to watch out for? Mailflow should stay on the 2010 stuff for the time ...
EX2013 - this is running in hybrid mode. I do not have any mailboxes on-prem. Everything was migrated to Exchange Online years ago. I don't have any SMTP relays either. Exchange 2013 went EOL last ...
Even after a migration to Exchange Online from a hybrid configuration, it's likely your organization will maintain a hybrid deployment for a few reasons. This arrangement is necessary because of the ...