Trying to use 'Direct delivery using built-in email server' to email notifications and getting error like below:
Status sending Email: DNS Server: x.x.x.x E-Mail: "[email protected]". Can not connect to MX servers for address [email protected] DNS Server: y.y.y.y E-Mail: "[email protected]". Can not connect to MX servers for address [email protected] (Sensor/Source/ID: 2739/3612/1)
Just need to understand process as new to PRTG and new to company where PRTG is installed.
I can do a nslookup for the MX records for the domain using either DNS server referenced from the PRTG (core) server itself e.g. nslookup -querytype=mx email.com x.x.x.x.
Is the error message indicating that the PRTG in-built email server cannot find any MX records. In which case why could this be when nslookup works at the command line on the PRTG server?
Or does the error message mean the PRTG in-built email server has got the MX records and is trying to talk SMTP to the servers in the MX records and failing. This could be possible as there is a firewall between the PRTG server and the email servers in the MX records.