Hello, I’ve tested with normal alerts using URLs from my site, and even with URLs from webhook.site, but I’m not receiving anything from HAMALERT (it works fine via telnet). Could you please clarify if there’s a special method or URL restrictions? I’ve tried all the methods: GET, POST, and even JSON, but nothing works.
73 / Pierre
You need to select the “URL” action in your trigger(s).
Question: When sending via SIMULATE, is it active with URL NOTIFICATIONS?
Yes.
Note that when you make changes to your triggers (including action selection), it can take up to a minute for the changes to be applied in the system.
fixed on my side 
Thank you , have a good evening