No longer receiving notices of user registrations

-Hi,

In the past, we’ve received email notices similar to this when someone accessed our website.

They are no longer arriving.  How do they resume?

——- Original Message ——–

Subject: New user registration for 2M Quality
From: WordPress <wordpress@2mquality.com>
Date: Tue, November 15, 2016 3:24 pm
To: c.admin@2mconsultingllc.com

The following user registered for 2M Quality (and is pending approval)

username: Jefferson Olmert
email: jeffersonolmert@gmail.com

First Name: Jefferson
Last Name: Olmert
City: Columbia
State: SC

This user registered here:
http://2mquality.com/register/

user IP: 162.236.108.236

activate user: http://2mquality.com/2mwebsite/wp-admin/user-edit.php?user_id=160