I am completely new do Docker, and a total n00b to linux, so apologies if this sounds silly.
I have gotten a docker system up and running on Digital Ocean, and its working nicely.
I am using a pre-built Mirth Connect docker and this runs beautifully and I can do all sorts of cool things. One of the things I want my Mirth to do for me is to send an email (SMTP sender) from inside the container but it seems that a Docker Container cannot send emails (I get an error about connecting to my mail server). I have tried mapping port 25 to 25 when running that did nothing.
docker run -d --name mirth1 -p 8080:8080 -p 8443:8443 -p 25:25 -p 8585:8585 brandonstevens/mirth-connect
The linux server can telnet into my mail server on port 25, so I know its not a firewall / Digital Ocean issue. Its also not a Mirth issue because Ive dont this a billion times before. Its something inside the container
So I guess there is more to this than I thought. Googling reveals a lot of links about adding sendmail to my container, but thats for php systems?