220 nippoh-bb.co.jp ESMTP Sendmail 8.14.5/8.14.5; Sun, 12 May 2024 05:55:21 +0900 250-nippoh-bb.co.jp Hello 224.205.197.207 [224.205.197.207] (may be forged), pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-AUTH PLAIN LOGIN 250-DELIVE...