Booth Junkie can let your guests send their photo straight to their own inbox after it’s taken.
Setting it up
Open the Admin Panel and navigate to the Sharing tab, followed by the Email tab, and enable the first toggle. See Customising the email settings for connecting the email account that sends on your behalf.
What guests see
Once enabled, guests are offered an email option after their photo is taken, alongside whichever other sharing methods you’ve turned on. They type their email address on the on-screen keyboard, with basic format checking, and the photo is sent as a link.