set syslog

set daemon 10

# TEST
poll mail.example.com proto imap
  user "ulf" password "testpassword" idle
  ssl
  folder "INBOX/test_2016-10-24"
  keep
  mda "tee /tmp/fetch_test"

$ sudo fetchmail -vk -f /etc/fetchmailrc

$ sudo fetchmail -vk -m cat -f /etc/fetchmailrc

...
Oct 25 15:16:25 example fetchmail[7271]: 1 message (1 seen) for ulf at mail.example.com (folder INBOX/test_2016-10-24).
Oct 25 15:16:25 example fetchmail[7271]: IMAP> A0005 IDLE
Oct 25 15:16:25 example fetchmail[7271]: IMAP< + idling