Creating a message via email from an automation in Jira


I want to post a message to a projects “Messages” board via an email. This works perfectly fine when I do it from my personal account. But now I want to have our Jira automation send those messages, so the sender of the mail does not use my personal address but a jira mail address. This leads to the message not being shown in the “Messages”, because I can not verify the email beforehand (confirmation emails are swallowed by the jira mail server and I can not read them nor click the link).

Is there any way I can show up Messages in the Project that I can send via email? The HTTP API does unfortunately not allow Messages to be sent yet…