Download embedded emails in a message in Gmail

Some third-party email clients can embed a whole message as an attachment. This creates a MIME part of "message/rfc822" content type. The content disposition header on these messages can be set to display either inline, or as a downloadable attachment typically with a .eml extension.

Previously, if the message was set to inline, the Gmail web UI showed the contents of the embedded message after the message's main text, prefaced with "Forwarded." However, if the embedded message was marked as an attachment, it would not be shown and instead only a download link for "noname.eml" would be shown.

With this launch, if the content disposition header is set as an attachment, these messages can now be viewed both as an inline expansion and as a full downloadable attachment. Please note that this new functionality works only for new messages.

Launch Details 
Release track:
Launched to both Rapid release and Scheduled release

Rollout pace: 
Full rollout (1-3 days for feature visibility)

All end users

Change management suggested/FYI

Note: all launches are applicable to all Google Apps editions unless otherwise noted

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