Bounces

Bounced messages are automatically monitored by our systems. You can be informed of bounces by webhook or via a scheduled export.

Types of bounces

Bounces are grouped into these types. In a case of any bounce, parcelLab will not re-try to deliver the message.

Bounce type

Description

Permanent / General

The recipient's email provider sent a hard bounce message, but didn't specify the reason for the hard bounce.

Permanent / NoEmail

The intended recipient's email provider sent a bounce message indicating that the email address doesn't exist.

Permanent / Suppressed

The recipient's email address is on our global suppression list because it has a recent history of producing hard bounces.

Transient / General

The recipient's email provider sent a general bounce message.

Transient / MailboxFull

The recipient's email provider sent a bounce message because the recipient's inbox was full.

Transient / MessageTooLarge

The recipient's email provider sent a bounce message because message you sent was too large.

Transient / ContentRejected

The recipient's email provider sent a bounce message because the message you sent contains content that the provider doesn't allow.

Transient / AttachmentRejected

The recipient's email provider sent a bounce message because the message contained an unacceptable attachment. For example, some email providers may reject messages with attachments of a certain file type, or messages with very large attachments.

Undetermined / Undetermined

The recipient's email provider sent a bounce message. The bounce message didn't contain enough information to determine the reason for the bounce.