I have the following details as string how can i fetch the Message Id?

Question

I have the below details as string i want to fetch each data separately like subject, date,... Is it possible. 

Subject: Re: mr
Thread-Topic: mr
Thread-Index: AQHZNeFl9xUBUVmA0kuT2sZAbo1Dyq65WjRY
Date: Wed, 1 Feb 2023 02:15:09 +0000
Message-ID: <[e-mail]>
References: <[e-mail]>
In-Reply-To: <[e-mail]>