We have an Exchange/O365 hybrid setup, and while I was out of the office it appears the self signed certs on the Exchange 2013 servers have expired. All user accounts are in O365, we just have a small number of service/functional accounts left on the on prem servers and nothing appears to have stopped working.
I have read that renewing the certs is easy, and it looks like it is, but I also saw people saying it is a much bigger deal in a hybrid setup.
Can anyone advise if there is a specific way to renew the certs in a hybrid configuration?