Email builder: dark mode, per-user SMTP, conditional blocks, sample autogen#4
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May 12, 2026 15:53
Safe HTML/text template rendering with variable substitution, used by builder, worker, and test-send flows.
AES-GCM encryption for storing SMTP passwords securely. Supports explicit key or derivation from session secret.
Direct SMTP client supporting STARTTLS, SSL/TLS, and plain connections for sending test emails via user-configured SMTP servers.
Add template_block_refs and user_smtp_servers tables. Add columns for block appearance, container styling, and conditional blocks.
Add block appearance fields (border_radius, padding, background), template container options, block refs with conditions, and UserSMTPServer model.
Block repo: appearance fields scan/update. Template repo: block refs CRUD, container options. New UserSMTPRepository for per-user SMTP server management.
Add auth.encryption_key to config for SMTP password encryption. Wire cipher and UserSMTPRepository into Handlers struct.
Add block preview, inline editing, and appearance controls (border radius, padding, background). New block rebuild logic for template recomposition.
Users can add, edit, test, and delete their own SMTP servers for sending test emails directly without going through Sendry MTA.
Dark mode support in builder. Conditional block visibility (if/endif). Auto-generate sample data from template variables. Remove legacy template_edit and template_new views in favor of unified builder flow.
Register new routes (block preview/appearance, SMTP management, builder edit). Add wrapper rebuild migration on server startup. Switch worker to use template rendering engine instead of inline regex.
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Summary
wrapper.html, off-by-one hex to dodge auto-invert, one-shot startup migration rebuilds stored templates on wrapper changes.conditionper block ref, wrapped as{{if .X}}…{{end}}at render time.Order.Sections[]for dynamic group names.views/template_edit.html,views/template_new.html— builder is the single editing surface now.