Event ID 12018 and Exchange 2019

Copper Contributor

We have recently migrated from on-premise Exchange 2016 to hybrid with Exchange 2016 server used primarily for management.  I have been interested in switching from a commercial SAN certificate to LetsEncrypt, but the idea of having my event logs perpetually full of 12017 and 12018 events due to Lets Encrypt's 90 day certs has made that unattractive.  Does Exchange 2019 behave any better in regards to how frequently it complains about certificates expiring 90 days in the future?

1 Reply

Hi @DaveTurnmire 

According to this error code, there is no difference between Exchange 2016 and Exchange 2019 



If I have answered your question, please mark your post as Solved

If you like my response, please give it a Like :smile:

Appreciate your Kudos! Proud to contribute! :)