iCloud: How to display long email headers

An index of articles that describe how to view the full header information of an email message.

When you need to report junk mail or resolve an email issue involving your iCloud account, you may be asked to provide the full (or long) headers of an email message.

Follow the instructions for the email app you’re using:

Microsoft provides instructions for Outlook:



Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet. Contact the vendor for additional information.

Last Modified:

Additional Product Support Information

Start a Discussion

in Apple Support Communities
See all questions on this article See all questions I have asked
United States (English)