When a delivery cannot be sent to a profile, the remote server automatically sends an error message, which is picked up by the Adobe Campaign platform and qualified to determine whether or not the email address or phone number should be quarantined. See Bounce mail qualification.
Email error messages (or "bounces") are qualified by the inMail process. SMS error messages (or "SR" for "Status Report") are qualified by the MTA process.
Messages can also be excluded during the delivery preparation if an address is quarantined or if a profile is blacklisted. Excluded messages are listed in the Exclusion logs tab of the delivery dashboard (see this section).
A dedicated out-of-the-box report is also available. This report details the overall hard and soft errors encountered during deliveries as well as the automatic processing of bounces. For more on this, refer to this section.
Unreachable (Soft/Hard type): an error has occurred in the message delivery chain (incident on SMTP relay, domain temporarily unreachable, etc.). According to the error returned by the provider, the address will be sent to quarantine directly or the delivery will be tried again until Campaign receives an error which justifies the Quarantine status or until the number of errors reaches 5.
Mailbox full (Soft type): the mailbox of this user is full and cannot accept more messages. This address can be removed from the quarantine list to make another attempt. It is removed automatically after 30 days.
Refused (Soft/Hard type): the address has been placed in quarantine due to a security feedback as a spam report. According to the error returned by the provider, the address will be sent to quarantine directly or the delivery will be tried again until Campaign receives an error which justifies the Quarantine status or until the number of errors reaches 5.
Account disabled (Soft/Hard type): when the Internet Access Provider (IAP) detects a lengthy period of inactivity, it can close the user's account: deliveries to the user's address will then be impossible. The Soft or Hard type depends upon the type of error received: if the account is temporarily disabled due to six months of inactivity and can still be activated, the status Erroneous will be assigned and the delivery will be tried again. If the error received signals that the account is permanently deactivated then it will directly be sent to Quarantine.
If a delivery fails, retries will be performed during the delivery duration, only for Soft or Ignored errors (see Delivery failure types and reasons).
To modify the duration of a delivery, go to the advanced parameters of the delivery or delivery template and specify the desired duration in the corresponding field, as in the example below. The advanced delivery properties are presented in this section.
The default configuration allows five retries at one-hour intervals, followed by one retry per day for four days. The number of retries can be changed globally (contact your Adobe technical administrator) or for each delivery or delivery template (see this section).
A delivery can fail immediately (synchronous error), or later on, after it has been sent (asynchronous error).
Delivery failure error messages (or "bounces") are picked up by the Adobe Campaign platform and qualified by the inMail process to enrich the list of email management rules.
This list is available to administrators only and contains all the rules used by Adobe Campaign to qualify delivery failures.
To access it, click the Adobe Campaign logo, at the top left, then select Administration > Channels > Email > Email processing rules.
To list the various bounces and their associated error types et reasons, click the Adobe Campaign logo, in the top left, then select Administration > Channels > Quarantines > Message qualification.
Double opt-in mechanism is a best practice when sending emails. It protects the platform from wrong or invalid email addresses, spambots, and prevents possible spam complaints.
The principle is to send an email to confirm the visitor's agreement before storing them as ‘profiles' into your Campaign database: the visitor fills out an online landing page, then receives an email and has to click in the confirmation link to finalize its subscription.