Re:The World's Longest Alphabetical Email Address (2004)
by dreamcompiler on Thursday May 14, 2020 @01:05PM
(#23182130)
Yes. easyDNS offers this service. They call it a "catch all mailmap." You also need your "real" mail server ISP to be okay with getting unlimited addresses forwarded to them. Some ISPs don't like it because it makes SPF more difficult.
https://kb.easydns.com/knowledge/mailmaps/