As part of our ongoing regular review of our documents, please find UASG009 - 

UASG009 provides some contractual or tendering clauses that people might want to use with regard to Universal Acceptance (and IPv6 and DNSSEC).

It’s available for editing in Google Docs at https://docs.google.com/document/d/1y-TV9RxGzc8VUkGs2b_VidEifdSHvr-HY_dxJAzLZOo/edit?usp=sharing

Also attached in this PDF.

At this point, we’re looking to add a specific clause for EAI support that people can use when searching for an email system or service.