Unable to email from photos

but is Mail set in the Mail Preferences as your primary Mail reader? This needs to be enabled. Try to share only one Photo. Mail will not appear in the Share menu, if too many photos have been selected at once.

You have not yet set up a mail account with your web gmail account https://support.apple.com/en-in/guide/mail/mail35803/mac

And messages also https://support.apple.com/en-au/HT208532

You must have a gmail address and password same as Apple ID and password that is signed in system preferences .

And check the box of mail , messages in system preferences > iCloud .

Always post the version of Mac .

Even the mail accounts are disabled ( it could be gmail account or iCloud account ) , they are temporarily disconnected , selecting few photos and right click on them and then share with mail , messages will show not as shadowed .

In the screen shot the box of enable this account is unchecked ( shown with black arrow ) , if I uncheck the box for gmail account or iCloud account , it doesn't effect the share options , the messages , notes will be seen completely .

But to share photos from these application , the box of enable this account must get checked .

Are you using Mail as your mail client? You need to do so before Mail displays in the Share menu.

I don't believe your answer , the default mail has no connection with it , I have already posted a screen shot to verify it , the messages and photos don't show as shadowed .

You're welcome. I think, that is what OT meant with the question about "Mail client".