Knowledgebase

Eine Email erreicht mich nicht - wieso?

Veröffentlicht von Boris Hinzer am 23.07.2013 12:26

Unser Spam-Schutz funktioniert in mehreren Phasen (siehe auch Wie funktioniert die Spam-Abwehr?). Kommen Emails nicht an hat dies immer einen Grund - meist liegt es entweder an einer Fehlkonfiguration des absendenden Mailservers oder aber an der Tatsache das die IP-Adresse in einer Realtime Blacklist gesperrt wurde.

Sollte eine Mail aus einem wichtigen Grund abgelehnt werden, erhält der absendende Mailserver immer eine Benachrichtigung mit dem Grund der Ablehnung.

Nachfolgend eine Auflistung der Meldungen und Fehlermeldungen (vorab nur in Englisch) der Phase 1 unseres Spamschutzes.

CODE Description
ALLOWED The message passed all filters. qmail may still bounce the message for other reasons, however.
ALLOWED_AUTHENTICATED The remote client successfully authenticated using SMTP AUTH. If qmail is patched to provide SMTP AUTH, this code will never be used.
ALLOWED_TLS The remote client successfully started a TLS session.
DENIED_ACCESS_DENIED The connection was blocked because the remote server's IP address or rDNS name was found in the access file with a deny command.
DENIED_AUTH_REQUIRED The message was blocked because the remote server has not authenticated, which is required.
DENIED_BLACKLIST_IP The connection was blocked because the remote server's IP address is blacklisted.
DENIED_BLACKLIST_NAME The connection was blocked because the remote server's rDNS name is blacklisted.
DENIED_EARLYTALKER The connection was blocked because the remote server began sending data before the SMTP greeting was issued.
DENIED_GRAYLISTED The recipient was blocked because the sender/recipient combination was graylisted. The SMTP connection continues after this error occurs.
DENIED_IP_IN_CC_RDNS The connection was blocked because the remote server's IP address was found in the remote server's rDNS name and the remote server's rDNS name ends in a country code.
DENIED_IP_IN_RDNS The connection was blocked because the remote server's IP address was found in the remote server's rDNS name and a prohibited keyword was found in the remote server's rDNS name.
DENIED_OTHER The connection was rejected by qmail (or another downstream filter).
DENIED_RBL_MATCH The connection was blocked because the remote server's IP address was found on a DNS RBL.
DENIED_RDNS_MISSING The connection was blocked because the remote server has no rDNS name at all.
DENIED_RDNS_RESOLVE The connection was blocked because the remote server's rDNS name does not resolve.
DENIED_RHSBL_MATCH The connection was blocked because the remote server's reverse DNS name was found on a right hand-side DNS blacklist (RHSBL) OR because the sender's domain name was found on a right hand-side DNS blacklist (RHSBL).
DENIED_RECIPIENT_BLACKLISTED The recipient was blocked because the recipient email address is blacklisted.
DENIED_REJECT_ALL The message was blocked because all mail is being rejected.
DENIED_RELAYING The recipient was blocked because the recipient's domain is not locally hosted and the remote server is not allowed to relay.
DENIED_SENDER_BLACKLISTED The connection was blocked because the sender's email address is blacklisted.
DENIED_SENDER_NO_MX The connection was blocked because the sender's domain has no mail exchanger, making the sender address invalid.
DENIED_TOO_MANY_RECIPIENTS The recipient was blocked because the limit was reached for this connection. The SMTP connection continues after this error occurs.
DENIED_UNQUALIFIED_RECIPIENT The recipient was blocked because the address had no domain name. The SMTP connection continues after this error occurs.
DENIED_ZERO_RECIPIENTS The message was blocked because no valid recipients have been specified.
FAILED_AUTH The remote server attempted to authenticate but the given username and/or password were incorrect.
FAILED_TLS The remote client attempted to start a TLS session but SSL negotiation failed.
TIMEOUT The connection timed out, either in total time or idle time. If the connection was already being blocked for another reason, the code for that error is given as REALCODE.
TLS_ENCRYPTED The remote server has started a TLS session with qmail. spam service does not have access to the server's certificate file, so it cannot decrypt the traffic to log any information about senders or recipients.
UNKNOWN_AUTH The remote server requested an authentication method spam service doesn't support. This shouldn't happen.
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