Email via Synology Relay

General
1

Hello, Hello!

I recently set up a mail relay on my synology to deal with all the sub systems in my house which want to email me but can't because I'm not able to set them up via my Email provider...

So internally, now I can send an Email to my Synology without authentication and the mail server there will relay via my mail provider.
I have tested it with Ubnt Web Interface and confirmed it working.

When I send an Email via the mail node it flashes (sending...) but the Email never gets sent...
How can I debug this? It also doesn't show up in the Synology Protocol...

2

Update:
Other services work as well, i just connected my firewall through the relay and it is working fine...

3

alright...
figured it out...

username needs to be set as this is also used as the "msg.from" address...