diff --git a/README.md b/README.md
index c504efe..b938f48 100644
--- a/README.md
+++ b/README.md
@@ -93,6 +93,12 @@ These are the options that can be specified in your .ini config file.
 | `ckanext.contact.recaptcha_v3_secret` | API secret for the reCAPTCHA service.    | False (i.e. disabled) |
 | `ckanext.contact.recaptcha_v3_action` | `data-module-action` for the form/button |                       |
 
+## Other
+
+| Name                          | Description                                                                                          | Default             |
+|-------------------------------|------------------------------------------------------------------------------------------------------|---------------------|
+| `ckanext.contact.check_email` | Set to False to disable checking email addresses via [pyIsEmail](https://pypi.org/project/pyIsEmail) | True (i.e. enabled) |
+
 <!--configuration-end-->
 
 # Usage
@@ -107,7 +113,7 @@ Add the following HTML where you want the contact button to appear:
     <i class="fas fa-envelope"></i>{{ link_text if link_text else _('CONTACT BUTTON TEXT') }}
 </a>
 
-{% resource 'ckanext-contact/main' %}
+{% asset 'ckanext-contact/main' %}
 ```
 
 Where `params` is a dict with three entries: package_id, resource_id, record_id (all of which are optional).
diff --git a/ckanext/contact/routes/_helpers.py b/ckanext/contact/routes/_helpers.py
index a61c29d..52715ea 100644
--- a/ckanext/contact/routes/_helpers.py
+++ b/ckanext/contact/routes/_helpers.py
@@ -13,6 +13,7 @@
 from ckanext.contact import recaptcha
 from ckanext.contact.interfaces import IContact
 from datetime import datetime, timezone
+from pyisemail import is_email
 
 log = logging.getLogger(__name__)
 
@@ -42,6 +43,15 @@ def validate(data_dict):
             errors[field] = ['Missing Value']
             error_summary[field] = 'Missing value'
 
+    # check the email address, if there is one and the config option isn't off
+    if (
+        toolkit.asbool(toolkit.config.get('ckanext.contact.check_email', True))
+        and data_dict['email']
+    ):
+        if not is_email(data_dict['email'], check_dns=True):
+            errors['email'] = ['Email address appears to be invalid']
+            error_summary['email'] = 'Email address appears to be invalid'
+
     # only check the recaptcha if there are no errors
     if not errors:
         try:
diff --git a/ckanext/contact/theme/templates/contact/snippets/form.html b/ckanext/contact/theme/templates/contact/snippets/form.html
index ec3c031..b9a39cd 100644
--- a/ckanext/contact/theme/templates/contact/snippets/form.html
+++ b/ckanext/contact/theme/templates/contact/snippets/form.html
@@ -30,7 +30,7 @@
                               value=data.subject, error=errors.subject, classes=['control-medium'],
                               is_required=false, placeholder=_('Optional subject')) }}
 
-                {{ form.markdown('content', label=_('Your Request'), id='field-content',
+                {{ form.textarea('content', label=_('Your Request'), id='field-content',
                                  value=data.content, error=errors.content,
                                  placeholder=_('What do you have to tell us?'), is_required=true) }}
             {% endblock %}
diff --git a/ckanext/contact/theme/templates/contact/success.html b/ckanext/contact/theme/templates/contact/success.html
index fc0534f..389df41 100644
--- a/ckanext/contact/theme/templates/contact/success.html
+++ b/ckanext/contact/theme/templates/contact/success.html
@@ -5,7 +5,7 @@
   <article class="module">
     <div class="module-content">
       <h1 class="page-heading">Thank you!</h1>
-      <p>Your comment has been sent, we will answer you as soon as possible.</p>
+      <p>Your comment has been sent and we will answer you as soon as possible.</p>
 
     </div>
   </article>
diff --git a/pyproject.toml b/pyproject.toml
index 7b11181..433af3c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,8 @@ classifiers = [
     "Programming Language :: Python :: 3.8"
 ]
 dependencies = [
-    "ckantools>=0.3.0"
+    "ckantools>=0.3.0",
+    "pyisemail==2.0.1"
 ]
 
 [project.optional-dependencies]