Use Messages and Mail to share photos from Photos on Mac
You can use the Messages app to send up to 10 photos at a time, directly from Photos. To share using Messages, you must sign in to Messages using your Apple ID.
You can also use the Mail app to email photos directly from Photos.
Sign into Messages
On your Mac, open the Messages app.
Choose Messages > Preferences, then click iMessage.
Type your Apple ID and password, then click Next.
Close the preferences window.
Share photos using Messages
In the Photos app
on your Mac, select up to 10 photos to share.Your recipients can play the video in Live Photos that you send using Messages.
Click the Share button
in the toolbar and choose Messages.Type one or more email addresses or phone numbers, or click the Add button
and select people from Contacts.
If you want, you can type a text message to include with your photos.
Click Send.
Use Mail to share photos
When you use Mail to send photos in an email, Photos sends it from the first account listed in your Mail preferences. If you have other email accounts set up in Mail preferences, you can select which email account to send the email from when you send it.
When you use Mail to send a Live Photo, the Live Photo is transferred as a still image only.
Tip: If you have many files or large files to send, you can use Mail Drop to send them. You must be signed into iCloud to use Mail Drop. You can use Mail Drop to send attachments up to 5 GB in size right from Mail on your Mac, or from icloud.com/mail on your Mac or PC. All file types are supported and attachments don’t count against your iCloud storage.
In the Photos app
on your Mac, select the photos you want to send.You can send photos from your photo library or an album, but not from a slide show or a project.
Click the Share button
in the toolbar and choose Mail.Mail opens a mail message with your photos attached.
Type the recipient’s email address in the To field, then type a subject line in the Subject field.
Type a message and choose an image size from the Image Size pop-up menu if you want, then click Send.