update

frontend/src/components/campaigns/CampaignSequenceBuilder.jsx

@@ -196,11 +196,13 @@ function WaitCard({ step, onRemove, onDaysChange }) {
     );
 }
 
-function ActionCard({ step, onRemove, senderHint, accountHint }) {
+function ActionCard({ step, onRemove, senderHint, accountHint, emailAccountHint }) {
     const sender = (senderHint || '').trim();
     const account = (accountHint || '').trim();
     const showSender = sender && (!account || sender !== account);
     const showLiMeta = step.channel === 'linkedin' && (showSender || account);
+    const mailbox = (emailAccountHint || '').trim();
+    const showEmailMeta = step.channel === 'gmail' && !!mailbox;
     return (
         <div className="relative w-full max-w-md">
             <div className="flex w-full items-center gap-3 rounded-xl border border-slate-200 bg-white px-4 py-3 text-left shadow-sm">
@@ -222,6 +224,9 @@ function ActionCard({ step, onRemove, senderHint, accountHint }) {
                             {account ? <span>Profile: {account}</span> : null}
                         </p>
                     ) : null}
+                    {showEmailMeta ? (
+                        <p className="mt-1 text-[11px] leading-snug text-violet-700">Mailbox: {mailbox}</p>
+                    ) : null}
                 </div>
                 <ChevronRight className="h-5 w-5 shrink-0 text-slate-300" aria-hidden />
             </div>
@@ -245,7 +250,7 @@ function ActionCard({ step, onRemove, senderHint, accountHint }) {
 /**
  * Vertical sequence builder: START → steps (+ inserts) → END with dashed spine.
  */
-export default function CampaignSequenceBuilder({ value, onChange, linkedinDefaults }) {
+export default function CampaignSequenceBuilder({ value, onChange, linkedinDefaults, mailboxDefaults }) {
     const steps = value;
     const setSteps = onChange;
     const [pickerIndex, setPickerIndex] = useState(null);
@@ -260,6 +265,14 @@ export default function CampaignSequenceBuilder({ value, onChange, linkedinDefau
         },
         [linkedinDefaults]
     );
+    const mailboxLabelFor = useCallback(
+        (refId) => {
+            if (refId == null) return '';
+            const a = mailboxDefaults?.accounts?.find((x) => Number(x.id) === Number(refId));
+            return (a?.display_name || a?.label || '').trim();
+        },
+        [mailboxDefaults]
+    );
 
     const insertAt = useCallback(
         (index, kind) => {
@@ -388,6 +401,17 @@ export default function CampaignSequenceBuilder({ value, onChange, linkedinDefau
                                               )
                                             : ''
                                     }
+                                    emailAccountHint={
+                                        step.channel === 'gmail'
+                                            ? (
+                                                  mailboxLabelFor(
+                                                      step.unipile_account_ref_id ??
+                                                          mailboxDefaults?.default_mailbox_unipile_account_ref_id
+                                                  ) ||
+                                                  (mailboxDefaults?.mailbox_profile_display_name || '').trim()
+                                              )
+                                            : ''
+                                    }
                                     onRemove={() => removeAt(index)}
                                 />
                             )}

frontend/src/components/campaigns/CreateCampaignWizard.jsx

@@ -36,6 +36,7 @@ export default function CreateCampaignWizard({ open, onOpenChange, onComplete })
     const [estimatedContacts, setEstimatedContacts] = useState(0);
     const [sequenceSteps, setSequenceSteps] = useState(() => createDefaultSequenceSteps());
     const [linkedinDefaults, setLinkedinDefaults] = useState(null);
+    const [mailboxDefaults, setMailboxDefaults] = useState(null);
 
     const reset = useCallback(() => {
         setStep(1);
@@ -76,23 +77,34 @@ export default function CreateCampaignWizard({ open, onOpenChange, onComplete })
     useEffect(() => {
         if (!open) {
             setLinkedinDefaults(null);
+            setMailboxDefaults(null);
             return;
         }
         let cancelled = false;
-        apiFetch('/api/unipile/linkedin/campaign-defaults')
-            .then((r) => r.json())
-            .then((d) => {
-                if (!cancelled) setLinkedinDefaults(d);
-            })
-            .catch(() => {
-                if (!cancelled) {
-                    setLinkedinDefaults({
-                        accounts: [],
-                        linkedin_profile_display_name: '',
-                        default_unipile_account_ref_id: null,
-                    });
-                }
-            });
+        Promise.allSettled([
+            apiFetch('/api/unipile/linkedin/campaign-defaults').then((r) => r.json()),
+            apiFetch('/api/unipile/mailbox/campaign-defaults').then((r) => r.json()),
+        ]).then(([li, mb]) => {
+            if (cancelled) return;
+            setLinkedinDefaults(
+                li.status === 'fulfilled'
+                    ? li.value
+                    : {
+                          accounts: [],
+                          linkedin_profile_display_name: '',
+                          default_unipile_account_ref_id: null,
+                      }
+            );
+            setMailboxDefaults(
+                mb.status === 'fulfilled'
+                    ? mb.value
+                    : {
+                          accounts: [],
+                          mailbox_profile_display_name: '',
+                          default_mailbox_unipile_account_ref_id: null,
+                      }
+            );
+        });
         return () => {
             cancelled = true;
         };
@@ -301,6 +313,7 @@ export default function CreateCampaignWizard({ open, onOpenChange, onComplete })
                             value={sequenceSteps}
                             onChange={setSequenceSteps}
                             linkedinDefaults={linkedinDefaults}
+                            mailboxDefaults={mailboxDefaults}
                         />
                     ) : step === 3 ? (
                         <PlaceholderStep