Bounces

The bounce event extract file shows all the hard and soft bounces that occurred in a specific date range. The events in this report relate to all subscribers for a particular send.

Output Types

  • CSV
  • TAB
  • XML

Columns

Attributes
Name Description Possible Values Data Type Character Length
ClientID The system account identifier associated with the attribute set -2^63 (-9,223,372,036,854,775,808) to 2^63-1 (9,223,372,036,854,775,807) Numeric Maximum length - big integer
SendID or JobID Identifier associated with an email send   Number Maximum length - big integer
SubscriberKey Customer-specified subscriber unique identifier associated with attribute set. By default, the value is the same as EmailAddress.   String 254
EmailAddress Subscriber email address identifier associated with attribute set   String 254
SubscriberID System-generated subscriber unique identifier associated with attribute set. SubscriberID relates to the Subscribers file SubscriberID column.   Number Maximum length - big integer
ListID Identifier of the list ID associated with the subscriber in the send   Number Maximum length - big integer
EventDate Date the bounce event occurred   Datetime  
EventType Identifies event type Bounce String 6
BounceCategory Identifies bounce type
  • Block bounce
  • Hard bounce
  • Soft bounce
  • Unknown bounce
  • Technical or other bounce
String 50
SMTPCode SMTP code related to the bounce   Numeric Small integer
BounceReason Detailed reason for bounce provided by external ISP or MTA See Bounce Reason Table String 8000
BatchID Identifies batch associated with a triggered email sent event - defaults to 0 for a marketing list send

Sample values:

SendID,EventDate,SubscriberKey,EmailAddress,TriggeredSendExternalKey,BatchId

1234,1/2/2024,"example@example.com","example@example.com","Coupon",1

1234,1/2/2024,"example@example.com","example@example.com","Coupon",2

1238,1/10/2024,"example@example.com","example@example.com","Coupon",1

String 100
TriggeredSendExternalKey External key associated to a triggered send definition if the bounce resulted from a triggered send request   String 100

Bounce Reason

Bounce Reason
BounceSubcategoryText BounceSubcategoryDescription
Authentication Message lacks required authentication
Bad Address Syntax Email address in invalid
Complaints Your email is blocked due to complaints
Content Message was filtered due to content
Data Format Error Email is rejected due to formatting or line length errors
Domain Unknown Recipient domain doesn't exist
High Unknown Address Pct. Email is blocked due to the high quantity or percentage of unknown or inactive addresses on your list
Inactive Account Address is temporarily unavailable
Mailbox Full Recipient's mailbox is full or has exceeded storage allocation
Network Error Connection lost or timed out during delivery
Other Failed due to temporary failure or indecipherable bounce message
Other This address does not accept mail
Other This email is blocked by recipient
Other Mailbox temporarily unavailable
Server Too Busy Receiving email server is temporarily overwhelmed with delivery attempts, from you and other senders
Spamblocked The remote mail server rejected this message due to characteristics of spam
Temporary Domain Failure Receiving domain temporarily unavailable
Unknown Response from email provider that doesn’t match a BounceSubcategoryText value. This response can contain non-alphanumeric characters.
URL Block Emails containing your URLs are blocked
User Unknown Address is non-existent at the domain