Dear Logback dev list , On the QOS.CH Jira instance issues can be browsed by anonymous users, that is without logging in. The Jira web-page for a given issue will contain the user name of the reporter as well as the user names for all those who commented on the issue. Thus, web-crawlers will be able to see user names on our Jira instance. This is acceptable as long as user names do not contain sensitive data. However, given that your user name matches your email address on the QOS.CH Jira instance, we fear that your email address may leak to anonymous web-crawlers (who can see your Jira user name). Please note that many other publicly accessible Jira installations suffer from the exact same problem. Modifying your user name so as to make it different than your email address should stop the aforementioned data leakage. Unfortunately, you cannot change your user name on your own. Only the Jira administrator can change it. In light of the above, if you decide to change your Jira user name, please let me know the user name of your choice by replying to this message. Best regards, -- Ceki Gülcü