Gmail new feature now lets you connect emails to other Gmail addresses without downloading them first.
It makes more sense to add emails than to forward separate emails. Say if you want to send multiple messages related to a single topic. If you add an email, the entire view of your conversation would be saved, making it much simpler for a third party to follow than if you would simply forward each of its pieces, one by one.
Sending emails as attachments also helps you to send your recipients a short letter, preparing them for what they’re about to read. In their favorite mail program, the attachments can be opened directly, because each attached email is a file with the extension “.eml.” You can add only as many emails as you want. Clicking on an attachment like this should open in a new tab. This latest feature of Gmail will now be available until 13 January 2020.