During the UASG Workshop yesterday, there was discussion about reachability vs adherence to the standards. As I understand it… Non-EAI mail supports ascii only in the mailbox name and the domain name. A mail application can convert an IDN domain name to ascii through the Punycode conversion process before the message goes ‘out on the wire’, so it should arrive where it’s expected even though it may not look like it ‘should’ (punycode instead of the IDN) But, what about the mailbox name? If it is in Unicode and the message is sent to a non-EAI mail platform, will the message be rejected? Will it just disappear? Is this good practice? Coremail, at our workshop in Marakesh, told us that if the receiving mail system does NOT support EAI, then they convert the Unicode mailbox name into an ASCII name which they alias in their mail environment - so any replies will go to the original unicode mailbox. Is this another one of those instances that would benefit from community discussion? Don Don Hollander Universal Acceptance Steering Group Skype: don_hollander