A knowledge centre of email
4.7.1 Email Bounce Error Reason Message Sender Blocked By Receiving Server: Delayed Message The email message has not yet been delivered because the recipient’s email provider is not accepting messages from this sender. This usually means that the receiving system has security or policy concerns with regard to either the specific sender, recipient, or the […]
4.7.0 Email Bounce Error Reason Unknown Security Or Policy Concern: Delayed Message The email message has not yet been delivered because the message has caused a security concern, but it is not clear what caused the problem. How to fix? Retry the email message see if it was a one-time problem or if the same […]
4.6.6 Email Bounce Error Reason Email Content Could Not Be Accessed: Delayed Message The email message has not yet been delivered because an email system involved in transmitting the message had a problem accessing its content. How to fix? Try sending the message again in a while as this problem might be temporary or already […]
4.6.5 Email Bounce Error Reason Message Content Not Accessible To Recipient Server: Delayed Message The email message has not yet been delivered because it included content or attachments that needed to be converted but that was not completed. How to fix? If the message had attachments, try sending it again without them and then try […]
4.6.4 Email Bounce Error Reason Content Loss During Delivery: Delayed Message The email message has not yet been delivered because it included content or attachments that needed to be converted and information was lost in the process. How to fix? Contact the recipient(s) to ensure that no undesirable consequences result from information being lost from […]
4.6.3 Email Bounce Error Reason Message Content Could Not Be Processed For Delivery: Delayed Message The email message has not yet been delivered because it included content or attachments that needed to be converted, which the email system was unable to accomplish. How to fix? If the message had attachments, try sending it again without […]
4.6.2 Email Bounce Error Reason Message Content Not Accepted By Recipient Server: Delayed Message The email message has not yet been delivered because it included content or attachments that needed to be converted and the conversion was not allowed. How to fix? If the message had attachments, try sending it again without them and then […]
4.6.1 Email Bounce Error Reason Message Content Or Attachment Not Supported: Delayed Message The email message has not yet been delivered because it included content or attachments that the recipient’s email provider cannot accept. How to fix? If the message had attachments, try sending each attachment in a separate email. Often things like Calendar Invitations […]
4.6.0 Email Bounce Error Reason Unknown Issue With The Message Content: Delayed Message The email message has not yet been delivered for unknown reasons related to its content or attachments. How to fix? If the message had attachments, try sending it again without them and then try sending each attachment in a separate email. If […]
4.5.6 Email Bounce Error Reason Messaging Command In Transmission Too Long: Delayed Message The email message has not yet been delivered because mailing protocol parameters were not met as the commands used in message transmission were too long. How to fix? Try sending the message again in a while as this problem might be temporary […]