diff --git a/server/cleanupAccounts.js b/server/cleanupAccounts.js
index 5e7c14ee..01a10762 100644
--- a/server/cleanupAccounts.js
+++ b/server/cleanupAccounts.js
@@ -48,7 +48,7 @@ async function warnInactive(db) {
             if (userRefreshed.bannedReason !== null) {
                 continue;
             }
-            mailer(userRefreshed.email, 'inactivityWarning')
+            mailer(userRefreshed.email, 'inactivityWarning', {username: userRefreshed.username});
         } catch (e) {
             console.error(e);
         }
diff --git a/server/routes/admin.js b/server/routes/admin.js
index 4570bf01..13d4c884 100644
--- a/server/routes/admin.js
+++ b/server/routes/admin.js
@@ -163,7 +163,7 @@ router.post('/admin/ban/:username', handleErrorAsync(async (req, res) => {
             WHERE id = ${user.id}
         `);
         await archiveBan(req.db, user);
-        mailer(user.email, 'ban', {reason: req.body.reason});
+        mailer(user.email, 'ban', {reason: req.body.reason, username: normalise(req.params.username)});
     } else {
         await req.db.get(SQL`
             UPDATE users
diff --git a/src/mailer.js b/src/mailer.js
index f36c2027..82a52364 100644
--- a/src/mailer.js
+++ b/src/mailer.js
@@ -72,6 +72,7 @@ const templates = {
             <p>[[ban.header]]</p>
             <p>[[ban.reason]][[quotation.colon]] %reason%</p>
             <p style="font-size: 12px; color: #777">[[quotation.start]]${terms}[[quotation.end]]</p>
+            <p style="color: #999; font-size: 10px;">@{{username}}</p>
         `,
     },
     inactivityWarning: {
@@ -84,6 +85,7 @@ const templates = {
                     [[user.removeInactive.email.cta]]
                 </a>
             </p>
+            <p style="color: #999; font-size: 10px;">@{{username}}</p>
         `,
     },
     cardsWarning: {