diff --git a/script/send-html-email.rb b/script/send-html-email.rb
new file mode 100644
index 00000000..564b0b01
--- /dev/null
+++ b/script/send-html-email.rb
@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+
+# This script will automatically send an HTML email to the
+# SMTP server given.
+
+require 'mail'
+require 'net/smtp'
+
+from = ARGV[0]
+to = ARGV[1]
+
+if from.nil? || to.nil?
+  puts "Usage: ruby send-html-email.rb <from> <to>"
+  exit 1
+end
+
+
+mail = Mail.new
+mail.to = to
+mail.from = from
+mail.subject = "A test email from #{Time.now.to_s}"
+mail['X-Postal-Tag'] = 'send-html-email-script'
+mail.text_part = Mail::Part.new do
+  body <<~BODY
+    Hello there.
+
+    This is an example. It doesn't do all that much.
+
+    Some other characters: őúéáűí
+
+    There is a link here through... https://postalserver.io/test-plain-text-link?foo=bar&baz=qux
+  BODY
+end
+mail.html_part = Mail::Part.new do
+  content_type 'text/html; charset=UTF-8'
+  body <<~BODY
+    <p>Hello there</p>
+    <p>This is an example email. It doesn't do all that much.</p>
+    <p>Some other characters: őúéáűí</p>
+    <p>There is a <a href='https://postalserver.io/test-plain-text-link?foo=bar&baz=qux'>link here</a> though...</p>
+  BODY
+end
+
+#puts mail.to_s
+
+Net::SMTP.start('127.0.0.1', 2525) do |smtp|
+  smtp.send_message mail.to_s, mail.from.first, mail.to.first
+end
+
+puts "Sent"