Greeting Cliff,
thank you for following up my issue.
My 3rd question was what type of tickets are these: RSVP, WooCommerce, Easy Digital Downloads?
reply: WooCommerce
So does this file exist: http://localhost:8888/Ticket/wp-content/uploads/2017/03/qr_0273291a12af6e81f4a6ba3c5080b8a0.png if you try to load it in your browser?
Reply: Yes
Could you please provide a screenshot of the ticket in your email? I wonder if, since the email is loading via Gmail, that it can’t see your localhost’s files. Do you maybe have a mail client like Outlook on your same computer that can open the email and maybe it’ll work that way? If this does work, then I’d guess you don’t have any issue at all for when you publish your site live.
I don’t have any other email provider in my computer. also the ticket number is not their.