Q: emailing from photo

Are you using Photos for Mac or iPhoto?

• In Photos the "Share" menu should be showing the Mail icon:
• 
• And in iPhoto '11 it should look like this:
  
  If the Mail option does not show in these menus, are you using Mail as your default mail client, or what have you selected as the default email reader in in the Mail > Preferences > General?

And are you using Apple Mail as your default Mail reader or a different application?

I am having the same problem - my default email reader has always been 'mail' - but I only see 'icloud photo sharing', 'messages', 'notes', 'set desktop picture' as options for sharing from Photo.  I tried selecting 'outlook' as default, then selecting 'mail' in preferences to see if I could get the option, but still no good.

Try this fix - se the link below:

https://support.apple.com/en-us/HT203129

       If Share options or Markup is missing after upgrading to OS X Yosemite or El Capitan - Apple Support

Just be careful, when using the Terminal. Typos in the Terminal can be dangerous.

Open the link and copy and paste  the Terminal command exactly as it is into the Terminal window, don't try to type it yourself.

It is a harmless command, but spelling errors in the Terminal can change the Terminal command into something dangerous.

This command does the following: It will reset the launch services database, so the installed applications and the services, document types, etc. supported by the applications can be found, i.e. for the Share menu.

Paths are searched for applications to register with the Launch Service database.

Valid domains are "system", "local", "network" and "user". Domains can also be specified using only the first letter. The parameters in the command are the following:

  -kill     Reset the Launch Services database before doing anything else

  -seed     If database isn't seeded, scan default locations for applications and libraries to register

Yeah! This worked.  That was driving me totally mad.....

You're welcome