Add email validation by using EmailField in Contact

src/registrar/migrations/0024_alter_contact_email.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.2.1 on 2023-06-01 19:23
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("registrar", "0023_alter_contact_first_name_alter_contact_last_name_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="contact",
+            name="email",
+            field=models.EmailField(
+                blank=True, db_index=True, help_text="Email", max_length=254, null=True
+            ),
+        ),
+    ]

src/registrar/models/contact.py

@@ -41,7 +41,7 @@ class Contact(TimeStampedModel):
         help_text="Title",
         verbose_name="title or role in your organization",
     )
-    email = models.TextField(
+    email = models.EmailField(
         null=True,
         blank=True,
         help_text="Email",

src/registrar/tests/test_forms.py

@@ -15,6 +15,7 @@ from registrar.forms.application_wizard import (
     AnythingElseForm,
     TypeOfWorkForm,
 )
+from registrar.forms.domain import ContactForm
 
 
 class TestFormValidation(TestCase):
@@ -277,3 +278,20 @@ class TestFormValidation(TestCase):
                 for error in form.non_field_errors()
             )
         )
+
+
+class TestContactForm(TestCase):
+
+    def test_contact_form_email_invalid(self):
+        form = ContactForm(data={"email": "example.net"})
+        self.assertEqual(
+            form.errors["email"],
+            ["Enter a valid email address."]
+        )
+
+    def test_contact_form_email_invalid2(self):
+        form = ContactForm(data={"email": "@"})
+        self.assertEqual(
+            form.errors["email"],
+            ["Enter a valid email address."]
+        )