Like A Snake Eating Its Own Email

(A customer has ordered an SSL certificate to enable https on their website.)

Me: “You should receive a confirmation email with a link.”

Customer: “Is this the email?”

(The customer sends me a copy of the email, including the link he needs.)

Me: “Yes. If you follow the instructions in the email, your certificate will be installed automatically.”

Customer: “I didn’t receive the email. Resend, please!”