So I set up fetchmail to retrieve emails with IMAP from a remote mail server, I was able to run it. How can I know that it found any emails or not since I did send test emails to the account being polled and haven't read them so that they can be detected by fetchmail. Another issue is that I am not sure that fetchmail is handing them over to my MTA which is postfix in this case.
How can I be sure this is happening and where do I find the emails retrieved?