How to send email to messenger?

Question

Email

Gentlemen, there is a hypothetical free messaging messenger with the ability to create private chats.
We create a conversation in such a messenger. Helmet from authorized emaila (admin mail) to a specialized email (must be issued by the messenger for use) letter through the usual smtp interfaces. The body of the email should appear in the conversation.
Is there such a messenger? It needs to be free.
If you suddenly ask me why such nonsense why did you come up with. I will answer like this. On the sms.ru service, from the mailbox associated with the account, you can send to a certain box, the address of which sms.ru told me as a result of this action, an SMS with the text of the letter will be sent to the phone number associated with my account. This is very convenient if, for example, my robot, which is trained to send letters via SMTP, suddenly automatically gets the opportunity to send SMS, write to its groups...

Answer 1

In general, I figured out how to send to the Slack messenger. It turned out to be very simple and cool. No SSL certificates for you like in viber, vatsap, etc. Although the answer to the question in the stated wording has not been received, I am closing the topic

Answer 2

You can try to implement through which thread zappier/iftt.
Well, at least Slack has hooks that allow you to shit into channels from anywhere. Only there on your side you need to do something on the server (most likely).

Answer 3

There is such a product Habarshi messenger. Anything is possible in it and any fantasy works there.