While configuring one of my clients RoundCube installation in combination with Plesk, it would work almost OK, except that when sending mails RoundCube would hang at the spinner with “Sending message…”. After some digging it turns out that the Plesk-bundled PEAR module directory was before the RoundCube bundled PEAR modules directory. Both contain Mail_Mime, but… Continue reading RoundCube email hangs on “Sending message…”