ownCloud/nextCloud for Filelink makes it easy to send large attachments by uploading those attachments to any ownCloud or nextCloud server and inserting a link to the file into the body of your email.

This add-on is unofficial and consequently not maintained by OVH. This add-on is a fork a Filelink dropbox add-on. This add-on adds support for hubiC accounts when using Thunderbird's Filelink feature ...