Wikipedia has a list of sample email addresses
Lucee returns wrong results,
with quoted strings / double dots,
when the local part (before the @) exceeds 64 characters
add two checks, local part can only be 64 characters, domain can only be 255 characters
I've checked this ticket with lucee latest version 220.127.116.11-SNAPSHOT and made a test with as per the above examples and the issue was confirmed with quoted with double dots. And also checked with gmail, it doesn't allow this type of mail id ( quoted with double dots ).
If we try with gmail means, it showing as per below image.