Retry Failed QCST Email Deliveries

This article explains automatic retry settings, the Email Delivery Retry task, and when an administrator can use Retry on a failed delivery.

Where this fits in QC Support Ticket

QCST sends through Joomla Mail. The Email Templates tab controls QCST sender/reply routing, retry/reminder/satisfaction options, template content, Department-specific variants, and delivery diagnostics; it does not replace Joomla’s underlying mail transport configuration.

Basic uses the built-in professional HTML generated from the template’s plain-text content. Pro/Max can customize subject and HTML and can create Department-specific template variants; preserved higher-tier content is not meant to be destroyed by a downgrade.

Primary location: Joomla Administrator → Components → QC Support Ticket → Email Templates.

Before you begin

  • Confirm Joomla Mail works before diagnosing QCST template delivery. For inbound mail, confirm PHP IMAP is available and keep one controlled test message available.

How to do it

  1. Open the QCST recent delivery diagnostics/history and identify a failed delivery that is safe/appropriate to retry.
  2. Read the event, recipient, attempt count and sanitized error first. Fix the transport/configuration cause when known.
  3. Use Retry for an eligible failed delivery, or allow the hourly Email Delivery Retry task to process it when automatic retry is enabled.
  4. Confirm the attempt/status changes and verify the recipient receives the message. Repeated retries will not fix invalid Joomla Mail credentials or an invalid address.

Important behavior and limits

  • Basic uses built-in HTML derived from the template's plain content; Pro/Max can use custom HTML and Department-specific variants.

Verify the result

  • A controlled event produces the expected template, subject/tokens, recipient, and delivery record.
  • Recent delivery diagnostics show whether Joomla Mail accepted the send or whether QCST queued/retried it.

If it does not work as expected

  • If mail does not arrive, test Joomla Mail first, then verify Outbound Email is enabled, template publication/scope, recipient eligibility, and retry diagnostics.

Community Discussion

For practical QC Support Ticket workflows and discussion with other Joomla site owners, visit the QC Support Ticket Community. For private support, bug reports, account-specific issues, or feature requests, use the QuantaCade support system.