Merge pull request #4232 from WoltLab/iusermailbox
authorTim Düsterhus <duesterhus@woltlab.com>
Thu, 20 May 2021 13:20:48 +0000 (15:20 +0200)
committerGitHub <noreply@github.com>
Thu, 20 May 2021 13:20:48 +0000 (15:20 +0200)
Add IUserMailbox interface


Trivial merge