Email Updates

If you are interested to receive email updates from the Hendersons you can sign up on the email list sign up page. Only your email address is required, however we kindly ask that you also fill out the first and last name fields as well. Please read the section: Closed-loop Opt in below, so that you will understand the process to subscribe.

It is also possible to unsubscribe from our updates on the email list sign up page or to change your email address.

To read previous email updates online please visit the Henderson Update list archive.


Closed-loop Opt In

We are required by law to record that you gave us permission to send you emails. This is also the polite thing to do. We do not want to send people emails that do not want to receive. To do this we use closed-loop opt in to insure that you want to subscribe and that you own the email address you are subscribing with.

For those of you that want to learn more about closed-loop opt in, you can read more about closed-loop opt in below.

How does closed-loop opt in to our list work?

  1. Fill-out and submit the form for either the English or German list online.

    You should see a pop-up window like this after submitting the form.
  2. Click on the big green button in the email you received to confirm that you own the email address and want to subscribe.

    You should see a confirmation.
  3. We will receive an email letting us know you would like to subscribe. We will approve your subscription. NOTE: We will handle this step for you!
  4. You will receive an email welcoming you to the list.
  5. Enjoy reading our updates in your inbox!

More about Closed-loop Opt in

(For those that want all the details.)

Wikipedia describes closed-loop opt in to an email list in this way:

"A new subscriber asks to be subscribed to the mailing list, but unlike unconfirmed or single opt-in, a confirmation email is sent to verify it was really them. Generally, unless the explicit step is taken to verify the end-subscriber's e-mail address, such as clicking a special web link or sending back a reply email, it is difficult to establish that the e-mail address in question indeed belongs to the person who submitted the request to receive the e-mail. Using a confirmed opt-in (COI) (also known as a Double opt-in) procedure helps to ensure that a third party is not able to subscribe someone else accidentally, or out of malice, since if no action is taken on the part of the e-mail recipient, they will simply no longer receive any messages from the list operator. Mail system administrators and non-spam mailing list operators refer to this as confirmed subscription or closed-loop opt-in. Some marketers call closed-loop opt-in "double opt-in". This term was coined by marketers in the late 90s to differentiate it from what they call "single opt-in", where a new subscriber to an email list gets a confirmation email telling them they will begin to receive emails if they take no action. Some marketers contend that "double opt-in" is like asking for permission twice and that it constitutes unnecessary interference with someone who has already said they want to hear from the marketer. However, it does drastically reduce the likelihood of someone being signed up to an email list by another person."