The RIPE NCC service region includes countries whose language is not written using Latin script. Many of the languages used in the RIPE NCC service region are written in Latin script but use diacritical marks that fall outside the US-ASCII character set. Internationalized Domain Names (IDNs) support the use of these scripts in DNS.

ICANN began delegating IDN Top-Level Domains as part of a test program in 2007 and the IETF updated the IDNA protocol in 2008 and as of mid 2020, there were over 160 IDN TLDs in the root zone.

The IETF published eight standards track RFCs on using IDNs in e-mail in 2012 and 2013. It is reasonable that organizations communicating with people whose preferred script is not Latin-based would want to use an IDN domain for e-mail as well as a web presence. It is also likely that the registry for an IDN TLD would want to use that TLD for its e-mail addresses.

RFC 3912 explicitly notes that the WHOIS protocol has not been internationalized while recognizing that some servers attempt to do so. RDAP has been deployed by the RIPE NCC and explicitly supports internationalization by UTF-8 encoding all queries and responses.

The RIPE community could decide to ignore EAI by trying to require organizations to deploy a secondary e-mail address for use in the RIPE Database. This would reduce the effectiveness of the RIPE Database as the secondary address is less likely to be monitored and used, and so be ineffective.