ウェブ

1. 特定の相手先のみ逆引き不具合のようなエラーがでてメール送信が ...
   2023/10/13 -... メールサーバーのIPアドレス] refused to talk to me: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [名前解決できないIP ...
   https://helpcenter.gmocloud.com > rapidsite > article
2. 450 4.7.1 Client host rejected: cannot find your hostname – Plesk
   Cause. Incorrect or missing PTR record of the sender's mail server. Resolution. Contact the server hoster or provider of the IP address in order ...
   https://support.plesk.com > articles
3. 450 4.7.1 Client host rejected: cannot find your hostname， [IP ...
   2019/7/2 -送信先のサーバーの仕様によっては「サーバーに設定されているホスト名」と「MXレコードのホスト名」が一致しない場合、エラーが返ることがございます ...
   https://help.arena.ne.jp > articles > 360025795274--Remot...
4. メールが相手先から拒否される場合の対処 | ライタス株式会社
   2018/8/16 -こういう時は、内容をよく読むに限ります。 5.7.1 Client host rejected: cannot find your hostname, [XX.XX.XX.XX] (in reply to RCPT TO ...
   https://blog.litus.co.jp > 2018/08 > blog-post
5. Error "Client host rejected: cannot find your hostname" - FireStorm ISP
   2018/12/23 -The error message 'Client host rejected: cannot find your hostname' is displayed to the sender if his provider has configured the IP ...
   https://www.firestorm.ch > error-clien...
6. Error - 554 Client host rejected: cannot find your hostname
   THE PROBLEM. The mail server's source IP address which is trying to send mail to parabon.com does not have proper reverse DNS entries setup or the DNS ...
   https://parabon-nanolabs.com > revers...
7. MailPlusセキュリティ ログ 450 4.7.25: Client host rejected ました。
   2022/11/21 -ホスト名が HELO コマンドのIPアドレスと一致しないため、 MailPlus ServerはSMTP接続を拒否しました。 解決策. トラブルシューティングを行うには、次の ...
   https://kb.synology.com > ja-jp > DSM > tutorial > How_t...
8. Client host rejected: cannot find your hostname - Support - cPanel
   2021/2/16 -Feb 5 05:33:25 mail postfix/smtpd[15726:] NOQUEUE: reject: RCPT from unknown[192.0.2.0]: 450 4.7.25 Client host rejected: cannot find your ...
   https://support.cpanel.net > articles
9. Client host rejected: cannot find your hostname - Google Groups
   Hi,. I'm using zimbra with Postfix as MTA. I got the following error message which indicate mail rejection based on hostname not find.
   https://groups.google.com > uFAPkhx...
10. 4.7.25 Client host rejected: cannot find your hostname, [172.25.0.1]
    I've configured SMTP properly yet I can't deliver my mail (e.g. by testing the mail) as a valid hostname has to be sent to the mailserver. Deployment ...
    https://github.com > discussions