I have got everything else working but I get the following error from the Fetch Bounces scheduled job (in the scheduled job log)
Full message: Finished execution of Fetch Bounces with result: Failure, Error message: A fatal error was triggered: Could not connect to MailStore for firstname.lastname@example.org@downham.org.uk.mail.aa.net.uk
Empty mail protocol
I'm running on WordPress at a hosting provider. I've checked that I can access the mail server from elsewhere, re-entered the data in case of a typo. Tried POP as well as IMAP, with/without SSL. Also tried with Google mail server instead. Finally I tried from one of the Drupal CiviCRM demo servers and it worked from there. I also tried telneting into the IMAP server from the hosting site and that worked fine so can't be a network issue. So it looks like either its a WordPress issue or something about the hosting provider configuration.
Any suggestions as to where to look next?
Many thanks - Mick