### Preconditions <!--- Provide a more detailed information of environment you use --> <!--- Magento version, tag, HEAD, etc., PHP & MySQL version, etc.. --> 1. Magento 2.1.2 ### Steps to reproduce <!--- Provide a set of unambiguous steps to reproduce this bug include code, if relevant --> 1. Enter email in newsletter subscription form as a guest user 2. Click submit button ### Expected result <!--- Tell us what should happen --> 1. Receive email confirmation of subscription ### Actual result <!--- Tell us what happens instead --> 1. No email is sent to the registered email address. Also, nothing in the trash/spam folder <!--- (This may be platform independent comment) -->