fix various ispcmail issues. fixes #5620 (!993) · Merge requests · ISPConfig / ISPConfig 3 · GitLab

"LICENSE" did not exist on "6dfc1f8aef2d75f5ca8fe694fb8ef27ef885b12c"

Fixes issues discussed in https://www.howtoforge.com/community/threads/password-reset-email-not-sent.84349/