EDIT: I ran a tcpdump and I can see that Unifi-controller is reaching out the SMTP server I am using (mail.twc.com). But that server requires a log in, and perhaps I am messing up that part.
SO, I have Postfix working on my system listening on port 25, and I configured Unifi controller to point to it (the IP address of the host Docker is running on). When I run tcpdump on port 25, I see ZERO traffic. Is there something I need to do to the container to make it able to talk to port 25 on the host?
First of all, big thanks to the folks who created and maintain this Docker image.
Has anyone had issues getting the Mail Server SMTP settings to work? In the UI I get message that SMTP failed for an “unknown reason”.
In my server.log, I get this ambiguous message:
[2020-02-25T17:44:24,098] WARN event - fail to send email: api.err.SmtpSendFailed
I am uncertain of where else I can go to troubleshoot the failure.
Appreciate any help!