Amazon, you really should know better. Source ip: 54.240.4.4
https://search.arin.net/rdap/?query=54.240.4.4 Source Registry ARIN Kind Group Full Name Amazon SES Abuse Handle ASA152-ARIN Email email-ab...@amazon.com
RCPT To:<email-ab...@amazon.com>
<<< 550 #5.1.0 Address rejected. 550 5.1.1 <email-ab...@amazon.com>... User unknown
DATA
<<< 503 #5.5.1 RCPT first Jul 29 09:47:27 yuri sendmail[14067]: x6TGlQe4014062: to=<email-ab...@amazon.com>, ctladdr=<goe...@sasami.anime.net> (500/500), delay=00:00:01, xdelay=00:00:01, mailer=esmtp92, relay=amazon-smtp.amazon.com. [207.171.188.4], dsn=5.1.1, stat=User unknown
