Show getmail-configuration status
The UI states 'Please check first if email retrieval works, before you activate this option.' without giving any feedback whether the getmail rule works.
The log files are also not very helpful. I defined several getmail rules all at once, and got messages in the mail error log like:
May 23 15:55:01 srv getmail: getmailOperationError error (POP error (-ERR Temporary problem, please try again later))
I had to disable them one by one to find out which once was incorrect. It would be very helpful if errors are detected and attributed to the corresponding rule so that it's easier to correct the error.
This is on 3.1b by the way, not sure if it also applied on previous versions.