After DP 7 installed, Mac Mail updated with the following new features.
What’s new in Mail?
Mail in OS X Yosemite offers notable new features that make it easier to send, receive, and view your email.
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Mark up attachments
Use Markup to add shapes, text, or callouts to images or PDF documents that you include in your messages. You can use the Markup tools, or draw and write freehand using your trackpad. You can sign your name using the trackpad, or snap a photo of your signature using the camera on your Mac.
Learn more about using Markup to annotate attachments.
Send large attachments using Mail Drop
When you send a message that includes large attachments (such as videos, presentations, or a folder of photos), Mail Drop automatically uploads the attachments to iCloud. If recipients use Mail in OS X Yosemite, the attachments are automatically downloaded and shown in the message. If recipients use other email apps, they see a link to download the attachments from iCloud.
Learn more about adding attachments to your messages and viewing attachments you receive.
Use Handoff to pass email between your Mac and iOS device
When you’re signed into your iCloud account on your Mac with OS X Yosemite and on your devices with iOS 8, and they’re near each other, they can pass whatever you’re doing in Mail between them. For example, you can start writing an email on your iPhone, then finish it on your Mac; just click the Mail Handoff icon in the Dock on your Mac to see your message in Mail and pick up where you left off.
Learn more about Handoff.
Show nicknames and short names
If you set preferences in Contacts to show short names and nicknames when they’re available, then those names will also be shown for your contacts in Mail.
Export images to Aperture
If you installed Aperture on your Mac, you can export photos and other images you receive in Mail directly to Aperture.
SEE ALSO
Mail overview