Gmail Headers

  1. Open mail.google.com

  2. Open the email you wish to view the headers of.

  3. On the top right of the email next to reply, click the three dots (more) -> Show original.

Source: https://support.google.com/mail/answer/29436


Outlook Web

  1. Open outlook.live.com

  2. Open the email you wish to view the headers of.

  3. On the top right of the email, click the three dots -> View -> View message source.

Source: https://support.microsoft.com/en-us/office/view-internet-message-headers-in-outlook-cd039382-dc6e-4264-ac74-c048563d212c#tab=Web


Outlook App

  1. Open Outlook.

  2. Open the email you wish to view the headers of.

  3. Click File -> Properties.

  4. Headers will display in the "Internet headers" box.

Source: https://support.microsoft.com/en-us/office/view-internet-message-headers-in-outlook-cd039382-dc6e-4264-ac74-c048563d212c#tab=Newer_versions


Apple Mail

  1. Open Apple Mail.

  2. Open the email you wish to view the headers of.

  3. Click View -> Message -> All Headers.

  4. Headers will display in the window below your inbox.

Source: https://support.apple.com/guide/mail/show-detailed-email-headers-mlhlp1089/mac


Don't see your email client listed? Odds are that a quick search of your mail client's documentation will show you how to view email headers. If you're still having issues, give us a shout and we'll help you find them!

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