diff --git a/.env.selfhost.example b/.env.selfhost.example
index 976d7782..2edfff36 100644
--- a/.env.selfhost.example
+++ b/.env.selfhost.example
@@ -41,5 +41,10 @@ AUTH_EMAIL_RATE_LIMIT=5
 # Optional: prefix all Redis keys (useful for shared Redis with ACL isolation)
 # REDIS_KEY_PREFIX=""
 
+# Optional: clear stored email content (text, html, attachments, headers) from
+# the database after this many days. Runs daily at midnight UTC. Leave unset to
+# keep email content indefinitely.
+# EMAIL_CLEANUP_DAYS=30
+
 # used to send important error notification - optional
 DISCORD_WEBHOOK_URL=""
diff --git a/apps/docs/self-hosting/overview.mdx b/apps/docs/self-hosting/overview.mdx
index 0a44b56d..cadffa87 100644
--- a/apps/docs/self-hosting/overview.mdx
+++ b/apps/docs/self-hosting/overview.mdx
@@ -80,6 +80,16 @@ Add the following environment variables.
   NEXTAUTH_SECRET="<your-usesend-secret>"
 ```
 
+  </Step>
+  <Step title="Email content retention (optional)">
+  By default, stored email content stays in the database forever. To bound database growth, set `EMAIL_CLEANUP_DAYS` to a positive number of days. A daily job (midnight UTC) then clears the `text`, `html`, `attachments` and `headers` values for emails older than the cutoff. Delivery status and event history are kept.
+
+```env
+EMAIL_CLEANUP_DAYS=30
+```
+
+Leave it unset to keep email content indefinitely.
+
   </Step>
 </Steps>
 
diff --git a/apps/web/src/server/jobs/cleanup-email-bodies.ts b/apps/web/src/server/jobs/cleanup-email-bodies.ts
index a8020c96..cb000bc4 100644
--- a/apps/web/src/server/jobs/cleanup-email-bodies.ts
+++ b/apps/web/src/server/jobs/cleanup-email-bodies.ts
@@ -37,11 +37,15 @@ if (isSelfHosted() && isEmailCleanupEnabled()) {
                     OR: [
                         {text: {not: null}},
                         {html: {not: null}},
+                        {attachments: {not: null}},
+                        {headers: {not: null}},
                     ],
                 },
                 data: {
                     text: null,
                     html: null,
+                    attachments: null,
+                    headers: null,
                 },
             });