Hi
we have very serious problem with exchange 2019 from the strart in our office and is that the address list doesn't work at any pc even with the server itself(shows" the connections to microsoft exchange is unavailable") but in owa address list work fine. we have searched a lot for this problem on internet and non of them worked.
Here is what we committed already :
1.check , renew and assign exchange certificates with all possible common name and dns names specifically autodiscover name to four smtp,iis,imap,pop sevices.
2.delete the related vm completely and recovered the exchange to last available verson 'cu7' same previously domain and that works completely fine but with same issue .
3.tied exchange testconnectivty tool but because our server isn't available for public the tool started with dnsrecord errors.
4.reinstalled various versions of outlook and replace multi time the out look profile .
plz help the only solution that we got is reinstalling the whole domain!

