The remote server did not respond with the handshake secret

[Phil_Seeman]

@vanju
I think the odds are the issue is with the SSL certificate and/or configuration at your “target” server.

Take a look at this post:

X-Hook-Secret only 32 chars

Found the problem: mod_h2… Had http2 active on my webserver. Are you able to fix that? Actually I am running on http/1.1 again. Best regards, Kevin

and the two posts here from @johnnygoodnow:

Not getting a response to create webhook request

Hi @Stephane and others, Unfortunately, not a lot comes to mind immediately with this specific scenario. One thing I’d recommend is making sure that your server can handle TLS 1.1+ (1.1 or 1.2 as of now) connections, along with 2048 bit certificates or greater (which was mentioned earlier). I’m looking into our exact verification process to determine which CA bundle it uses and anything else it might do in that process, and will let you all know. Of note is that we have verified on our end tha…

See if any of that information helps.