Scalable Email Infrastructure: Week 5

by Sonika Chowdary Gutha

week
gsoc
gsoc2026
ScalableEmailInfrastructure
week#5

Summary

This week focused on validating the end-to-end email pipeline. I manually tested the full flow — enqueue → Redis signal → EmailWorkerCommandUserMailer send — for all four transactional emails (welcome, resetPassword, adminNewUser, adminCrowdsourcingPrivilege) in the dev Docker stack. I confirmed jobs move correctly through email_jobs statuses, the worker picks them up via Redis and DB fallback, and emails are delivered through Postfix. Toward the end of the week I started scoping the next piece of work: the existing HTML templates are standalone blocks with no shared layout or branding, and admin notifications are sent as plain text only. I began reviewing them to plan a shared, branded layout to pick up the following week.

Daily Work Update

# Day Date A short description of the work done
1 Monday 2026/06/22 Tested user registration flow end-to-end: verified welcome and adminNewUser jobs are enqueued and processed by the email worker.
2 Tuesday 2026/06/23 Tested password reset and crowdsourcing privilege flows; confirmed resetPassword and adminCrowdsourcingPrivilege emails send with correct payloads.
3 Wednesday 2026/06/24 Ran full pipeline checks in Docker — job status transitions, Redis dispatch, DB fallback recovery, and Postfix delivery for all four transactional emails.
4 Thursday 2026/06/25 Wrapped up pipeline validation and resolved a couple of issues found during testing.
5 Friday 2026/06/26 Reviewed the existing email templates and mailer setup; scoped a shared, branded HTML layout and identified that admin notifications were being sent as text-only.
6 Saturday 2026/06/27
7 Sunday 2026/06/28