Mails vers orange.fr et laposte.net reviennent non distribués
Bonjour Depuis deux mois, tous les mails à destination de orange.fr et laposte.net reviennent non distribués Auriez-vous une explication ? Merci
Alle Antworten (3)
That seems to indicate a network problem or that the site is down or closed. A full display of the error message, preferably in English, may cause suggestions to appear. Thank you.
I am not a specialist at network problems, but the error message sent me searching for answers, as it looked like there was a problem with your email domain. I found the following text on a Microsoft support site, responding the the same issue from a user (error smtp 450 4.7.1).
"Error 450 4.7.1 indicates that the Exchange server is performing the reverse lookups to identify the address from where you are sending the email. Example: Suppose you want to send an email from example@domain.com, as you send the emails, your system is stamped with the IP address of your system. Now, when the server receives the email, it verifies first whether the email is sent through the same domain by verifying its IP address. It checks whether the IP address is pointing to the same domain, i.e. example@domain.com. If the server was not able to detect the sender of email or is not able to identify the hostname, then Error code 450 4.7.1 Client host rejected: cannot find your reverse hostname is encountered.
"We strongly advise contacting your recipient's email provider to check the configuration of Mail server and verify whether domain records of DNS has been setup properly or not.
"If your IP address is blacklisted by the server, find out the main cause of blocking. An IP address is generally marked as blacklisted when they are sending spam link or content. Request the server to remove your IP address from the blacklist.
Errors of the type if surfaced recently, possibly as email hosts are using tighter security checks. Sometimes, the error message focuses on DKIM and SPF settings within the email host server. To summarize, this problem needs to be fixed by your email host provider, unless your email domain is self-hosted, in which it may be your responsibility. However, my experience is that email host tech support personnel should be able to address this for you.
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