Hi, After upgrading to PRTG Network Monitor 22.214.171.1243 my IMAP Roundtrip sensor fails during SMTP with the "Helo command rejected: need fully-qualified hostname" message. The host sending the email has an FQDN setup in Windows settings. Also I have on the sensors settings the "HELO Ident" setup correctly. However when the agent connects it uses the hostname alone without the domain name, ignoring system and sensors settings. How can I resolve this?