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-rw-r--r--django/forms/fields.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/django/forms/fields.py b/django/forms/fields.py
index 46de2f53a0..01cd831964 100644
--- a/django/forms/fields.py
+++ b/django/forms/fields.py
@@ -609,6 +609,9 @@ class EmailField(CharField):
default_validators = [validators.validate_email]
def __init__(self, **kwargs):
+ # The default maximum length of an email is 320 characters per RFC 3696
+ # section 3.
+ kwargs.setdefault("max_length", 320)
super().__init__(strip=True, **kwargs)