问题
We have implement a Skype bot using Bot Builder 4. And this bot run smoothly around 2 years. But from recent days some specify groups cannot receive proactive message from the bot. We have traced both production & development environment to narrow down issue as below:
Those group cannot receive message all have format as: ...@p2p.thread.skype. When we create new group and add this bot into group (new group have format: ...@thread.skype). The message send successfully to new group.
We have get source code Bot Builder 4 from Github and add to my project to debug and see below:
- This is group send fail: fail group
- This is group send sucessfull: sucess group
- We got meaningless warning from my azure portal: azure warning
I don't know if Skype bot has just changed any rules or restrictions about their service?
I am very pleased and appreciate any sharing from everyone.
来源：https://stackoverflow.com/questions/65175895/skype-bot-cannot-send-messages-to-some-group-from-special-day-although-it-works