Horde Webmail
- Log into Horde Webmail.
- Open the email message.
- Click the "Message Source" link in the text menu at the top of the message.
- A new window will open with the full message and headers.
Roundcube Webmail
- Log into Roundcube Webmail.
- Double-click to open the email message.
- Click on the "Show Source" icon. The icon is a piece of paper with a S on the front.


