---
sourceDocument: Xanadu ServiceNow AI Platform Administration
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/platform-administration

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu ServiceNow AI Platform Administration

ft:clusterId :

    - platadm

bundleId :

    - platadm

workflow :

    - Platform


---

# Email bounce management

# Email bounce management {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

Help prevent sending emails to addresses that are known to generate bounces by monitoring and filtering them out while sending emails.

## Email bounce {#email-bounce__section_ivl_x1f_lzb}

An email bounce signifies the non-delivery of your email message according to [RFC3464](https://www.rfc-editor.org/rfc/rfc3464). When an email gets bounced, the sender receives a delivery status email with the reason for the bounce and the associated status code. For more information about these status codes, see [Status codes.](https://www.rfc-editor.org/rfc/rfc3463)

An email address is blocked after it reaches a certain threshold of bounced emails. The default count for blocking the bounced email addresses is 10.

To view the bounce email addresses, navigate to AllSystem LogsBounce Email Addresses.  
Important:  
Disabling bounce management is not recommended as it may lead to slow delivery or blocking of emails by email provider.

## Status code {#email-bounce__section_in4_dfh_rzb}

The syntax of the status codes is defined as the following:

    status-code = class "." subject "." detail

          class = "2"/"4"/"5"

          subject = 1*3digit

          detail = 1*3digit

The first subcode indicates whether the delivery attempt was successful. The second subcode indicates the probable source of any delivery anomalies. The third subcode indicates a precise error condition.  

## Status codes {#email-bounce__example_ln2_1gh_rzb}

{#email-bounce__table_dgd_y3p_rzb__entry__3}

| Code | Summary | Description |
|-|-|-|
| 5.1.1 | Bad destination mailbox address | The mailbox specified in the address doesn't exist. For email names, this means the address portion to the left of the "@" sign is invalid. |
[Table 1. Code 5.1.1]

{#email-bounce__table_dgd_y3p_rzb}

The default status codes that are used for blocking bounced email addresses are 5.0.\*, 5.1.\* and 5.7.\*, where the asterisks (\*) could be any number in
the series according to the status code specification.
E  
Note:  
There is a possibility that some email providers may use non-standard RFC status codes, potentially leading to functional email addresses being blocked. Administrators action is required to unblock these status codes and email addresses.

To view the blocked status codes go to AllSystem MailboxesAdministrationBounce Email Address Status.
* **[Configure bounce email address status](https://servicenow-prod.fluidtopics.net/6ToOiGBWD8L_dPB9ZdK4qA)**   
  Configure a bounced email address status according to type, class, subject, and details.

**Related tasks**   

* [Configure bounce email address status](https://servicenow-prod.fluidtopics.net/6ToOiGBWD8L_dPB9ZdK4qA "Configure a bounced email address status according to type, class, subject, and details.")
* [Check the status of bounced email addresses](https://servicenow-prod.fluidtopics.net/1wFZqvi4S8Tu63tinXR_MA "Choose the email address record that you want to modify, and update the state field as needed.")

*[\>]: and then