I'm running Postie 1.4.23 on a multi-site install 3.4.2, and having trouble when running the test-config script.
Strange thing is that this works on my development server in a multi-site install. Postie takes all of my email address info, saves the plugin settings, and everything seems fine. When I run test-config, it doesn't display anything for "Connect to Mail Host" and no errors in the browser.
The server is Apache 2 on Ubuntu 12.04, and has PHP5-IMAP installed. The mail host is local, running on Debian. Postie works on development server, but won't on Production server. I'm wondering if this is a permissions issue, where might I look for some info?