ip - IPv6 address as the domain portion of an email address -


i'm trying test new email validation function i've written, based on this one., minor adjustments.

from large set of valid , invalid entries, function finds 1 false negative - address has ipv6 address instead of domain.

user@[ipv6:2001:db8:1ff::a0b:dbd0] 

the source wikipedia page: email addresses

however, system.net.ipaddress fails parse ipv6:2001:db8:1ff::a0b:dbd0, , can't find references in rfc4291 prefix of ipv6.

obviously, ipv6:2001:db8:1ff::a0b:dbd0 not valid ipv6 address, valid in email address? or wikipedia wrong?

should actual email user@[2001:db8:1ff::a0b:dbd0] know?

you right @ rfc4291 ipv6 address format. however, smtp (and other email software handling addresses) should @ address literals in rfc5321.

the 1 want "ipv6-address-literal".


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