"Not a Member" Confirmation emails with no provocation

DOCUMENTATION:
Every club site has a link at the bottom of the MEMBERS ONLY links titled WEBSITE SUPPORT DOCS
And, on this forum at the top of the page is a HOW TO USE link
Go to the section on email security under the administrators section.

Open your site's admin console, drop down the module list and select 'Email & Contact Forms'. This is where you will find email security.

This document describes the settings in Email Security tab;

support.toastmastersclubs.org/doc/item/reducing-spam

Brian is referring to the section called "Add "Not a Member?" links to Emails sent to Members via FreeToastHost"
 

Hello,

I am curious about this topic also.  I belong to two clubs.  The first ABC, I received the "Not a Member" emails every other month or so last fall.  Our administrator would receive the email also.  He turned off an option (not exactly sure what the option was, I am assuming the email tagline) and I have not received any Not a Member emails since.

Fast forward, my second club Penmen, was spammed last week with "Not a Member" emails.  The majority (not all) of members received the email. 
I have not been able to discover a pattern for the generation of these emails. Last week was the first occurrence of the issue.

I will continue reading the experiences of others to try to learn why multiple members in my clubs receive the "Not a Member" emails periodically. 

Thank you,
Marcia

You can be as curious as you want. 

FTH is not the cause.

It is the email processors who are using link protection schemes they are clicking the links.

All we can do is tell the clubs to turn off the links from their admin consoles.

Hi Brian,
I don't completely understand the comment "link protection schemes they are clicking the links."
Are you saying that Microsoft Outlook is clicking the link for me?
Thanks,
Marcia

Yes!