Security, privacy, limitations and troubleshooting

Troubleshoot missing or unexpected read receipts

Check remote-image loading, token schema, email clients and proxy behaviour.

Audience: CRM staffPermission: Authenticated staff accountModule v1.0.0

Exact navigationAdmin Area → Letter Manager → Internal Full View; recipient email client

Before you begin

Use an authorised account and confirm the customer, external recipient, template, letter or configuration is the intended one.
Follow the exact route shown above and verify the stored record, generated file and delivery evidence instead of relying on an alert alone.

What this guide covers

Check remote-image loading, token schema, email clients and proxy behaviour. These instructions follow the inspected module’s live hook, route, controller, model, installer, PDF helper and view flow.

Exact step-by-step process

Confirm email_sent=1 and the outgoing body contained the pixel.
Confirm email_open_token exists and the public route is reachable.
Open the email with remote images enabled in a controlled client.
Review proxy/scanner notes for unexpected opens.
Do not alter counts manually.

Fields, choices and supported possibilities

Action scopeCheck remote-image loading, token schema, email clients and proxy behaviour.

Module version1.0.0

Exact routeAdmin Area → Letter Manager → Internal Full View; recipient email client

EvidenceVerify the history row, PDF, email metadata, open evidence, signature, public page, client view or postal fields produced by this flow.

Code-backed validations and workflow rules

Only the values and actions exposed by the supplied Letter Manager v1.0.0 code are supported.
Browser controls are not a substitute for server-side and operational verification.

Expected result and verification

The requested letter, template, setting, file or tracking detail is created or updated through the supported route.
The history row, generated PDF, email/send metadata, public verification, signature evidence, client view or postal display agrees with the action.
Any warning, missing file or failed send is investigated rather than bypassed.

Security, privacy and operational checks

Apply least privilege and verify recipient identity before sending or exposing public links.
Protect PDFs, enclosures, signatures, verification URLs, email-open metadata, IP addresses and customer data under organisational policy.
Test configuration and deployment changes with controlled records before production-wide use.
Interpret email opens and e-signatures according to their documented technical limitations.