Đoàn Trần Công Danh <congdanhqx@xxxxxxxxx> writes: > This is not correct. > RFC-822 allows @ in local part, > albeit, that localpart must be quoted: We do care about truly local e-mail addresses, without '@' anywhere inside <braket>, simply because they are common in the result of SCM conversion from CVS/SVN. But I do not think we are pedantic/academic enough to have cared about any local part that is unusual enough to require quoting; we instead relied on the fact that we live in real world with practical people who would avoid such an address ;-).