Dear all
I am an assigned INT directorate reviewer for draft-ietf-emailcore-as. 
These comments were written primarily for the benefit of the Internet Area Directors. Document editors and
shepherd(s) should treat these comments just like they would treat comments
from any other IETF contributors and resolve them along with any other Last
Call comments that have been received. For more details on the INT Directorate,
see https://datatracker.ietf.org/group/intdir/about/

The document serves as necessary Applicability Statement (AS) for updates of email protocols SMTP and IMF.
From my point of view it is quite clearly written and I want to thank all contributors and both editors as well as all reviewers so far.
Some comments: I think readability could be improved when some abbreviations would be expanded when first used in the document as e.g., 
Extended HELLO (EHLO), Mail Transfer Agent (MTA), and Augmented Backus-Naur Form (ABNF)
Furthermore in the introduction >[RFC2026], Section 3.2< may be exchanged by >(as defined in Section 3.2 of [RFC2026])<
In ch. 4.3 Isuggest to replace >specs< by >specifications< and >charset< by >character set<
Finally in ch. 6.1.3 a >)< is missing after (Require TLS [RFC8689]

Thanks and best regards
Dirk