Bump greenmail from 1.6.10 to 1.6.11
drwxr-xr-x - .github
-rw-r--r-- 235 .gitignore
-rw-r--r-- 910 .gitpod.yml
drwxr-xr-x - .vscode
-rwxr-xr-x 11359 LICENSE.txt
-rw-r--r-- 1236 NOTICE.txt
-rw-r--r-- 2626 README.txt
drwxr-xr-x - apidocs
drwxr-xr-x - databinding-tests
drwxr-xr-x - etc
drwxr-xr-x - legal
drwxr-xr-x - modules
-rw-r--r-- 71544 pom.xml
drwxr-xr-x - release-docs
drwxr-xr-x - src
drwxr-xr-x - systests