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PASSMAIL — ERP Document Email Automation

A self-updating .NET 6 Windows service that automatically emails Logo Tiger ERP documents to customers. Shipped to v1.4.3 with disciplined releases.

v1.4.3 · Windows service · Outlook-compatible

.NET 6Worker ServiceMailKitWinFormsSQL ServerInno Setup

Problem

Businesses emailed ERP documents like invoices, dispatch notes and orders to customers manually — slow, error-prone and untraceable.

Solution

A background Windows service (BackgroundService) periodically scans the ERP database, finds unsent documents, renders Outlook-compatible HTML emails, sends them via MailKit and logs the outcome. A WinForms config UI lets end users manage templates and modules.

Highlights

  • Three-project architecture: Core + Worker Service + WinForms Config
  • Outlook-compatible HTML template engine (MSO conditional comments, DPI, embedded logos)
  • 6 document modules: orders, dispatch notes, invoices, cash, bank, ledger slips
  • Inno Setup installer + PowerShell deploy + self-update mechanism
  • v1.0 → v1.4.3 release history with a disciplined CHANGELOG