Does the SMTP/IMAP sensor actually do a full round trip as im slightly confused?
The blurb says:
"As long as your particular sensor is green (up), you know that your email server accepts emails via SMTP, that you can send emails to external destinations, that you can receive emails from external sources with your mail system, and that emails can be retrieved via POP3 or IMAP"
So ive created an outlook.com IMAP account.
PRTG on the same network as Exchange is sending an email to the on premise Exchange server that is then sending it to outlook.com. PRTG Then logs into outlook.com to check the email is there, reads it and deletes it.
Then it stops.
So its not actually checking that my Exchange server is recieving email from an external source as outlook.com is not sending an email back in?
Or am i missing something?
I thought a round trip would be out of exchange and then back into Exchange?
If this isnt the case how do you go about checking with PRTG that Exchnage is recieving email from external sources?