We use SD+ v 8.0.2. 

Yesterday, we install SD+ on a new server with MSSQL DB. When install done, we backup active DB from old server and restore to New DB, copy folders (archive, fileAttachments) from old server to the new one. After that, we create new Cert for new server to mail server.

SD+ on new server fetching mail is ok.

But, we reply the old request (before any change above), it appear " Sending notification failed"

Please help us!

                  

PS: i attach log file here