the following shoud fail for idn-email: 'квіточка@поштаукр'

[lovas-ackerdemia]

hello, it seems that the the format "idn-email" doesn't check, if the top-level domain is missing or should be separated by a dot

should pass: 'квіточка@пошта.укр'
should fail: 'квіточка@поштаукр'

[gene-hightower]

I have changed my address parser to provide basic domain validation, and a relaxed check for address length.
Up til now, addresses were parsed only according to the grammar in RFC-5321.
Upgrade to version 1.1.0 and domains will be verified to have at least two labels, and the top-level label to have at least two octets, no label exceeds 63 octets, and that the overall domain length (as encoded for DNS lookup) does not exceed 255 octets.

[Bessonov]

It shouldn't. Both are pretty valid email addresses.

However, because of reasonable use cases, I think there should be an option for deniying local domains.