diff --git a/app/config/sculpin_site.yml b/app/config/sculpin_site.yml
index 5d0a6c1f..d726ffee 100644
--- a/app/config/sculpin_site.yml
+++ b/app/config/sculpin_site.yml
@@ -13,16 +13,18 @@ banner_text: |
     <a href="/drupal-upgrade">Plan your upgrade to Drupal 10 now</a>.
 
 ctas:
-    d7eol: |
-        There's less than a year until Drupal 7's end-of-life date. <a href="%site.url%/drupal-upgrade">Plan your upgrade to Drupal 10 now!</a>
-    subscription: |
-        Do you need immediate access to an expert Drupal Developer? With my <a href="%site.url%/subscription">Drupal development subscription</a>, make unlimited requests for a fixed monthly price in less time than posting to a job board!
     call: |
         Are you still using Drupal 7 and don’t know what’s involved to upgrade to Drupal 10? <a href="%site.url%/call">Book a Drupal 7 upgrade consultation call</a> or <a href="%site.url%/drupal-upgrade">an upgrade roadmap</a>.
-    pair: |
-        Need help or want another pair of eyes on your code? Book a <a href="%site.url%/call">1-on-1 consulting call</a> or an <a href="%site.url%/pair">online pair programming session</a> with a 100% money-back guarantee.,
+    d7eol: |
+        There's less than a year until Drupal 7's end-of-life date. <a href="%site.url%/drupal-upgrade">Plan your upgrade to Drupal 10 now!</a>
     module: |
         If you're creating a new Drupal module, try my <a href="https://github.com/opdavies/drupal-module-template">free Drupal module template</a>.
+    subscription: |
+        Do you need immediate access to an expert Drupal Developer? With my <a href="%site.url%/subscription">Drupal development subscription</a>, make unlimited requests for a fixed monthly price in less time than posting to a job board!
+    testing_course: |
+        Do you want to learn about automated testing in Drupal? Take my [free 10-day email course](%site.url%/atdc) and get daily lessons straight to your inbox.
+    pair: |
+        Need help or want another pair of eyes on your code? Book a <a href="%site.url%/call">1-on-1 consulting call</a> or an <a href="%site.url%/pair">online pair programming session</a> with a 100% money-back guarantee.,
 
 menu_links:
     -
diff --git a/source/_daily_emails/2024-03-02.md b/source/_daily_emails/2024-03-02.md
new file mode 100644
index 00000000..a4837a29
--- /dev/null
+++ b/source/_daily_emails/2024-03-02.md
@@ -0,0 +1,24 @@
+---
+title: Are your tests good enough?
+date: 2024-03-02
+permalink: archive/2024/03/02/are-your-tests-good-enough
+tags:
+    - software-development
+    - automated-testing
+    - test-driven-drupal
+cta: testing_course
+snippet: |
+    You're about to refactor or add to some existing application code. How confident are you it will work afterwards?
+---
+
+You've been asked to add a new feature to or refactor some existing code.
+
+Assuming you have automated tests already (if not, why not?), before you change the code, you should ask whether they're good enough.
+
+They need to be passing, but do you feel confident the existing functionality will still work after you make your changes?
+
+Do you have all the existing use cases covered?
+
+If so, carry on.
+
+If not, spend some time improving your tests first to get that confidence before making any changes.
diff --git a/source/_layouts/daily_email.html.twig b/source/_layouts/daily_email.html.twig
index 1b922f36..b8cfd963 100644
--- a/source/_layouts/daily_email.html.twig
+++ b/source/_layouts/daily_email.html.twig
@@ -9,9 +9,9 @@
 
   {% block cta %}
     {% if page.cta and site.ctas[page.cta] is defined %}
-      <p>P.S. {{ site.ctas[page.cta]|raw }}</p>
+      <p>P.S. {{ site.ctas[page.cta]|raw|markdown }}</p>
     {% else %}
-      <p>P.S. {{ random(site.ctas)|raw }}</p>
+      <p>P.S. {{ random(site.ctas)|raw|markdown }}</p>
     {% endif %}
   {% endblock %}
 {% endblock %}