Social Login plugin question
Your /craft/config/social.php file should probably look like this:

&lt;?php

return [
    'lockDomains' =&gt; [
        'awebaddress.net',
    ],
];


If you wanted to add more config settings, that would look like this:

&lt;?php

return [
    'lockDomains' =&gt; [
        'awebaddress.net',
    ],
    'allowEmailMatch' =&gt; false,
];