Hi @rendering, thanks for your message.

Emails come from your site and not our servers so as you’ve already checked spam folders and possibly marked your domain as a safe source, take a look at the following:

• This isn’t like regular emails you send and receive, but rather server alert messages. Usually, a restart of postfix or sendmail (whichever is installed) can fix it. Your hosting provider may need to help with this.
• If you have a third party plugin for sending emails with another service, like Gmail, it could be stopping these alerts from going out. Reaching out to the plugin author for support can help.

Once you’re 100% sure they’re not being junked and postfix/sendmail/a plugin isn’t stuck/misconfigured, I would certainly see if you’re able to send a test email from Wordfence > Tools > Diagnostics > Other Tests > Send a Test Email…

We don’t receive information from Google about why a human may sometimes receive a low enough score to always require verification. Generally, a “reCAPTCHA human/bot threshold score” setting in Wordfence > Login Security > Settings of at least 0.7 should allow most humans through on your site without having to verify every time. You could try altering this a few times to see if any setting helps.

Thanks,
Peter.