I have reverted a file to older version to resolve this issue. Can you please update to 1.6.1 and confirm if the issue has been resolved now?
I installed from the Plugins -> Add New -> Search plugins and it said it installed version 1.6.0, not 1.6.1. It behaved a bit differently than yesterday, though. ‘Test Imap connection’ now says working… but doesn’t appear to complete.
More info: Following ajgankema’s sugggesion, I installed version 1.3.5 yesterday and tried to create a mailing group. It gave me a warning message that I had not filled in Sender name or Sender email. After adding those fields, I successfully created the group. I suspect that 1.6.0 doesn’t warn you of required, unfilled, fields, but just discards the incomplete group.
I updated from 1.3.5 to 1.6.0 and it seemed to work although ‘Test Imap connection’ did not do anything. I deleted the plugin and reinstalled to test 1.6.1. It appears to at least partially work. I’m sending from outlook (html format) and the received message has a bunch of html displayed.
About outlook emails displaying HTML characters in emails, this might help:
https://www.wpmailinggroup.com/faq/strange-characters-in-emails/
Test Imap Connection button does not return results if your server has a low PHP timeout setting. This makes the function to timeout and not return any error. If this happens, you can go troubleshooting page and see the info there.
