Veeam “Unable to connect to SMTP server because of invalid credentials or connection settings”
From time to time, there are changes and updates to your SMTP server that may adversely affect you nightly reports. Your jobs will start throwing Sending e-mail report warnings that Veeam is “Unable to connect to SMTP server because of invalid credentials or connection settings” and/or “the remote certificate is invalid according to the validation procedure.” Resolving the SMTP warning is quick and easy as long as you know where to look. Here are the quick steps to checking and re-accepting the SMTP certificate: There may be other reasons that could be interrupting the communication between your Veeam backup server and the SMTP server. If you would like further assistance please contact Support@Managecast.com.