I’m trying to add some amount of members to a list created in my Klaviyo account. Everything works nicely for emails that has only ASCII characters (like george.washington@klaviyo.com). However if email contains unicode characters (as example trøst@somedomain.dk or привет@gmail.com), I’m getting following validation error: “<email> is not a valid email.”.
Tried to add members both using API endpoint (https://developers.klaviyo.com/en/reference/add-members) and using UI (Lists & Segments → Manage List → Import Contacts). Same behaviour.
Unicode characters are considered a valid part of email since 2012 (https://datatracker.ietf.org/doc/html/rfc6531).
Can I ask about the way to overcome this problem?
Thanks in advance!