Response requirements
Your webhook endpoint should return a 2xx HTTP status code only after the webhook has been successfully received.
Recommended response:
<span><span style="color: undefined">HTTP/1.1 200 OK</span></span>
<span><span style="color: undefined"></span></span>
or:
<span><span style="color: undefined">HTTP/1.1 204 No Content</span></span>
<span><span style="color: undefined"></span></span>
Any non-2xx response may cause MeSomb to retry the webhook.