How to check email header(See Original and Copy it)

For an email you received in Gmail, you can see where the email came from by looking at its headers, including how it got from the sender to the recipient’s mail servers.

• From a browser, open Gmail.
• Open the email you want to check the headers for.

• Next to Reply , click More  

• Then click Show original.

• Select all the texts shown in the red box and copy all those texts.