It may sound confusing, but it’s actually quite simple: A new Gmail feature lets you attach an email or an entire thread to another email.
In a blog post, Google explains that, in some situations, this could be more practical than forwarding several separate emails. “Sending emails as attachments allows you to write a summary email message to your recipients, and attach the set of supporting emails that recipients can directly open in their mail client,” the post says. It’s not a need I’ve encountered often, but it certainly doesn’t hurt to have the option.
To do it, you can start a new email and then just drag the subject line from a list of emails and the software will recognize it as a possible attachment (see video below).
The attached emails will be converted into “.eml” files, and there’s no limit on how many emails you can attach.
The feature is being gradually rolled out to users starting Dec. 9, and it should take up to 15 days for it to become available to everyone.
To check if the feature is already live for you, open an email and click the three dot menu — you should see a “forward as attachment” option in there.