Email, Messaging, & Video Calls Email How to See Full Message Headers in iCloud Mail Learn the sender's IP, location, routing details, and more by Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated on September 30, 2020 Email Yahoo! Mail Gmail Tweet Share Email If you have an Apple ID, you have access to a free iCloud email address accessible from your iCloud account online. iCloud emails, like other email types, contain header lines to show the message's routing information. Here's a look at how to open email headers in iCloud Mail to view all this data. Mutlu Kurtbas / Getty Images What Are Email Headers? You'll see some headers, like To and From, in every email. Most emails contain a Subject header, and headers like CC and BCC are very common. Other headers, however, are hidden. These headers can contain the sender's location, routing details, the email service used to send it, time sent and received, and more. If you want to evaluate an iCloud email, looking at all its header information can help you spot spam email, scams, potential blocking information, tracking info, and much more. See Full Message Headers in iCloud Mail While many headers are hidden by default, iCloud Mail makes it easy to reveal them. Here's how: Navigate to iCloud.com and enter your Apple ID. Select the arrow to continue. Enter your password and select the arrow to continue. You'll arrive at your iCloud dashboard. Double-click on Mail. Select an email message and then double-click on it to open it. Select Settings (gear icon) from the top menu. Select Show Long Headers. You'll see all the email's header and metadata information.