Thank you for sharing!

I’m trying to figure this out and I’m stuck at creating the file to save the API key. Where did you put the file in the lemmy-ansible setup?

Now you need to specify your credentials (use apikey as username and an API Key as password) in the separate file /etc/postfix/sasl_passwd (you’ll likely need to create it):

I’m in the same boat and confirm that yes, port 25 is blocked.