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Email bounce handling


New in Tiki25. Leveraging rambomst/php-bounce-handler and Email filters, handle email bounces in Tiki: add system tracker to hold bounce information, add bounce handler lib, add sieve filters to check for bounces and add to bounce list in system trackers.


Initial commit: https://gitlab.com/tikiwiki/tiki/-/merge_requests/1879

What is bounce

A bounced email, or bounce, is an email message that gets rejected by a mail server. When an email bounces, it has for some reason not reached the intended destination.

A bounced email can be either a hard bounce or a soft bounce. A hard bounce means that the email address is permanently unavailable and should not receive electronic mail. A soft bounce is temporary, and may be caused by server outages or a full inbox. Most email service providers will designate soft bounces as a hard bounce after three failed sends.

How to configure

Step 1: Configure system tracker holding bounce information


Go to System-Trackers, access it from /tiki-admin.php?page=trackers and check Email bounces tracker then:

  • Choose which tracker will store the bounced emails and statistics.
  • Choose an email field that stores the email address that bounced.
  • Choose an email folder field that stores the bounced messages read by Tiki.
  • Choose a numeric field that stores the total number of soft bounces occured for an email address.
  • Choose a numeric field that stores the total number of hard bounces occured for an email address.
  • Choose a checkbox field that stores the blacklist state for an email address - whether Tiki should skip sending emails to that email address or not.

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Create a tracker with these fields before

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Step 2: Configure the filter

Go to Webmail, Click on filters in settings section then click on add filter and set other details of filter: name, priority and test. In the conditions & actions section, Add is bounce as a condition and select type of condition soft, is not soft, hard, not hard. Then click on add action and pick add to bounce list

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Step 3: Set up cron job


Finally add php console.php sieve:filters command to Tiki Scheduler or a cron job

When these are configured and condition is met (using https://github.com/rambomst/PHP-Bounce-Handler/) item is created/updated in the bounce tracker, updating soft/hard bounce counts, the email added to the tracker email field (if configured)

Attached files

ID Name Comment Uploaded Size Downloads
181 Screenshot 2023-01-18 at 08.51.58.png Tracker creation to hold bounce information Josaphat Imani Nathan 208.61 Kb 113
180 Screenshot 2023-01-18 at 08.51.23.png Filter configuration Josaphat Imani Nathan 158.16 Kb 98
179 Screenshot 2023-01-18 at 08.52.25.png System tracker configuration Josaphat Imani Nathan 298.04 Kb 106