Running Seeddms 5.1.8 on Dockers problem with POSTFIX mail notification using drag-drop

[iftiali]

When we use document upload by drag and drop the notification does not send email out. Same goes for edit or deletion function. But the upload feature from menu works fine and results into the notification mail sent out.

App Version : 5.1.8
Platform: Docker running on Ubuntu 16 64 bits
DB: MariaDB

I found the real reason for it. Since the drag and drop feature uses postfix notifications through Ajax.php file and it is not functioning on Docker container. But it works with direct install (linux on bare metal, for example)

I installed postfix and configuring to send email on the docker image and run from that image but is there a way we can update the Dockerfile to include this installation and configuration?

Thanks

BTW great work on dockerizing SeedDMS, good job 👍