2024/4/18 -Cause. Incorrect or missing PTR record of the sender's mail server. Resolution. Contact the server hoster or provider of the IP address in ...
2024/3/10 -3. bestperson: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [5.35.82.146]. probaly your issue. bestperson: SMTP error from remote mail ...
5日前 -Your mail has been successfully queued! This response indicates that the recipient server has accepted the message. 403, You are not authorized to send from ...
2024/4/4 -... 450 4.7.1 Client host rejected: cannot find your reverse hostname ... Open Proxy / Compromised and Exploited Host / Phishing and Malware Source ... Is this your IP?
2024/3/2 -Old Reports: The most recent abuse report for this IP address is from 2 months ago . It is possible that this IP is no longer involved in abusive activities.
2024/5/14 -host mail.imperiaforum.com[195.3.142.42] said: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [5.188.107.46] (in reply to RCPT TO ...
2024/3/8 -The following organization rejected your message: mail.contoso.com. Diagnostic information for administrators: Generating server: alpineskihouse.com ronald ...
2024/3/13 -This means, that you can't be really sure, on which host your command is executed. ... rejected. Do not ... The only meaningful way for a client to know whether an ...
2024/5/16 -Describes using Cisco Meeting Server version 3.8 in a single split server deployment scenario.
2024/3/8 -The following organization rejected your message: mail.contoso.com. Diagnostic information for administrators: Generating server: alpineskihouse.com ronald ...
Q.メールを送信し、5日後の今日になって 件名「Undelivered Mail Returned to Sender」というメールが「MAILER-DAEMON@mail.自分のドメイン」から届き...
A.くみちゃんさんのおっしゃっていることに補足ですが、送信元の IP アドレスに対して適切な DNS レコードが設定されていないことが原因のように思われます。 cannot find your h...