I have a problem with magento 2.1.7, every time a guest user subscribe to the newsletter he doesn't receive confirmation email.
I have already check on configuration-->costumer-->newsletter;
and check the cron job.
I don't have any idea because the mail is not sending to users who subscribe on newsletter, the confirm order email is sending, so the server configuration is OK.
Anyone have some idea, tips?
How can I fix this thing?