How to find my message headers?

Starting in February 2024, Gmail and Yahoo are rolling up new authentication requirements which require using a custom DKIM authenticated domain with DMARC reinforced.

GetResponse strongly advises all senders to use emails addresses from own sending domains as a from field, and to configure both DKIM and DMARC.

For additional details on these modifications, refer to our blog post:
Gmail and Yahoo’s Authentication Changes: All You Need to Know

Message headers are a way for our Deliverability team to understand what happened with a message after it’s been delivered. It’s usually most helpful when investigating issues with messages ending up in Spam for example.

We always need original headers from the inbox where the message was delivered, not from a forwarded message.

When extracting headers, it’s best to copy them and then save them into a text file. This way, you can send them to us making sure that no part of them is cut off.

How to find headers in Gmail?

  1. Click on the message in Gmail to open it.
  2. Look for 3 vertical dots menu to the right of replying icon.
  3. Select Show original from the menu.
    headers in gmail.
  4. Click Copy to clipboard to copy the headers.
  5. Open a text editing software of your choice and paste the headers there.
  6. Save the file and send it to us via contact form (select General questions category).

How to find headers in Outlook?

For macOS:

  1. Display the list of your messages in Outlook.
  2. Right click on the message to display the menu.
  3. Select View source to show the headers.
    headers in outlook
  4. Select the entire text and copy the headers from the window that opens.
  5. Open a text editing software of your choice and paste the headers there.
  6. Save the file and send it to us via contact form (select General questions category).

For Windows:

  1. Double-click a message to open it in a new window.
  2. Select File > Properties.
  3. Headers will appear in the Internet headers box in a new window.
  1. Save the file and send it to us via contact form (select General questions category).

How to find headers in Yahoo Mail?

  1. Click on the message in Yahoo Mail to open it.
  2. Look for 3 horizontal dots menu next to the Not Spam icon.
  3. Select View raw message from the menu.
    headers in yahoo.
  4. Select the entire text and copy the headers from the window that opens.
  5. Open a text editing software of your choice and paste the headers there.
  6. Save the file and send it to us via contact form (select General questions category).

How to find headers in different services?

If you’re using a different service from the three mentioned above, you can find instruction on how to extract headers from different services under this link.