Sending test mail failed. RCPT failed: 550 with UrBackup Server 2.0.27

i have the same problem server2.027
Sending test mail failed. Error: Failed sending data to the peer(ec=55), RCPT failed: 550

i have a lokal Exchange 2013 server port 25 open for all internal adreses

Do you have a recive connector configured for your urbackup servers IP?

Are you trying to send email from an internal email address to an external address? If so, you may need to configure a relay.

These are the directions to setup the relay. (edit: the powershell portion at the bottom is the most important part)

1 Like