Talk:Clans/@comment-25921744-20151105194005

This page tells us that:

"The message remains in the inbox after being viewed. After a certain number of new messages are sent, it will be deleted." No, they don't last very long. Our clan does not use mail often, but the messages disappear in just a few weeks even if no new messages take the space. How long do they actually remain visible? I don't know.