v2.1.2

2.1.2 (June 16, 2024)

• The domain name length limit is corrected from 255 to 253 IDNA ASCII characters. I misread the RFCs.
• When a domain name has no MX record but does have an A or AAAA record, if none of the IP addresses in the response are globally reachable (i.e. not Private-Use, Loopback, etc.), the response is treated as if there was no A/AAAA response and the email address will fail the deliverability check.
• When a domain name has no MX record but does have an A or AAAA record, the mx field in the object returned by validate_email incorrectly held the IP addresses rather than the domain itself.
• Fixes in tests.