Fixed typo in regex for IPv6 literals in EmailValidator.
@@ -170,7 +170,7 @@ class EmailValidator:
re.IGNORECASE)
literal_regex = _lazy_re_compile(
# literal form, ipv4 or ipv6 address (SMTP 4.1.3)
- r'\[([A-f0-9:.]+)\]\Z',
+ r'\[([A-F0-9:.]+)\]\Z',
re.IGNORECASE)
domain_allowlist = ['localhost']
