Dont' receive Telegram messages


  • Used Zammad version: 3.3
  • Used Zammad installation source: (source, package, …) epel-release
  • Operating system: Centos 7
  • Browser + version:

Expected behavior:

  • Receive Telegram messages

Actual behavior:

  • Telgream activated and configured.(green light beside the bot)

Can access web site via port 443 (https://)

Valid Certificate with domain name

When sending a message to my bot, Nothing displayed in my zammad console, it seems it doesnt receive the message.

Steps to reproduce the behavior:

Check Webhook’s info via GET

And read this thread:

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thanks very much lumpov. According to the infos, I need to create a full chain certficate. If I may ask :
I have my wildcard certificate I bought (.crt) and my intermediate one (ca_bundle.crt) plus my .key file.
If I create a new file including my 2 .crt , will it be fine ? In this case, is the order important ?

You can check Telegram’s requirements on their site and check HTTPS on your Zammad instance on

If you bought cert in good service provider and setup all cert correct chain - everything will be fine.

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yes, thanks, I just check on Check SSL Certificate - GeoCerts and everything is fine (… green :slight_smile: Certiticate chain is complete and correct
… but when requesting a getwebhookinfo, still having a ssl problem … anyway… will look further ; thanks very much for your help

There is no green mark if check on the

Please double check all Telegram certs requirements with detailed ssllabs report.

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Thanks Lumpov,
The certificate sounds good but it’s a wildcard certificate … maybe this is my problem
thanks for your help :slight_smile:

If you get A+ - it will sounds good.

As you can see: week protocol support and key exchange. Not wildcard. Try to compare all Telegram cert’s requirements with ssl report.

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I can warmly recommend the following page for hints on how to secure your system with better ciphers for several services:

Thanks MrGeneration :slight_smile:
this time I’ve a A+ :slight_smile:

But can’t communicate… still need to change my certificate … :wink:
→ Wrong… I can now communicate with my Zammad using Telegram !! :slight_smile:
Thanks very much to all

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