This is about sonarqube 5.1 version
I have issue assign plugin and also subscribed to the emails in my profile page. I've done some erroneous SVN commits deliberately to check the email notification settings but it doesn't seem to work correctly. I receive emails sometimes but other times it doesn't work like that.
I know this is not a constructive enough question but I'm really stucked here after trying all the scenarios and going through the documentation. Any insight would be highly appreciated.
You should uninstall this plugin. It is compatible, but it does not work correctly. The problem is that SonarQube 5.1 introduced core auto assignment (see automatic issue assignment and SONAR-5906). The core functionality & plugin execution order is as follows:
See topic on SonarQube mailing list
I am also using SQ 5.1 and Issue Assign plugin works perfectly fine without any issues. You should check your email notification settings.