Known Issue for Universal Email 3: Email Not Sending
There was a bug discovered in Universal Email 3 where emails aren't sending due to to duplicate message IDs. We have created a patch if you are experiencing this.
Log in and visit the Download Center. Click on Universal Email 3; then click on the Known Issues section. Download the related zip file and follow the instructions in the readme file.
Note that this is a patch for Universal Email 3 - not the latest version of Universal Email - and you do not need to address it if you own Version 4.