Odoo silently deletes most notification and template emails right after sending them — Settings → Technical → Emails stays empty, and when a customer says "I never received that", you have nothing to show. This module keeps every sent email with a configurable retention period, turning the Emails screen into a real audit trail. Free and open source (LGPL-3), identical behavior on Odoo 14.0 through 19.0.

• Works immediately — active on install with a sensible 365-day retention.
• Bounded database growth — a daily job purges kept emails (including failed/cancelled ones) past retention; set 0 to keep forever.
• Transparent — a "Kept by Email History" filter shows exactly which emails were preserved.
• Safe — emails already configured to be kept are never touched by the cleanup.

Screenshots

Settings → General Settings → Discuss: keeping is on out of the box, with a 365-day retention you can change (0 = keep forever).

Technical → Emails is no longer empty: notification and template emails stay listed after sending, with recipients, dates and status.

The "Kept by Email History" filter shows exactly which emails this module preserved.

Installation

1. Open Apps, remove the default "Apps" filter if needed, and search for Keep Sent Email History.
2. Click Install. Only the standard mail module is required.
3. Keeping is active immediately — no further setup needed for the defaults.

Configuration

1. Go to Settings → General Settings, scroll to the Discuss section and find Keep Sent Email History.
2. Set Email Retention (days) — kept emails older than this are deleted by a daily job. Use 0 to keep emails forever.
3. Click Save.

Usage

1. Enable developer mode, open Settings → Technical → Emails — sent chatter notifications and template emails now stay listed with their recipients, dates and contents.
2. Apply the Kept by Email History filter to see what this module preserved.
3. The daily scheduled action "Emails: purge kept history past retention" enforces your retention window automatically.
4. Switching the feature off stops keeping new emails; already-kept emails remain until retention removes them.
5. Password reset and signup invitation emails are never kept — they contain one-time login links, so Odoo deletes them as usual.

Version notes

Behavior is identical on every supported series (14.0 – 19.0). Only internal view markup differs per version.

License: LGPL-3 · Source on GitHub · Issues and contributions welcome.