diff --git a/scripts/campaigns/README.md b/scripts/campaigns/README.md
index e2da8a7..dacf781 100644
--- a/scripts/campaigns/README.md
+++ b/scripts/campaigns/README.md
@@ -84,6 +84,27 @@ The `--sandbox` flag does TWO things:
   so the test gifts (non-redeemable in sandbox) don't actually land in
   any real customer inbox
 
+### `--from` sender
+
+The Mailjet account has `targo.ca` verified at the domain level (SPF +
+DKIM + DMARC), so any `*@targo.ca` sender works out of the box. The
+default we use for gift campaigns is:
+
+```
+--from "Gigafibre Support <support@targo.ca>"
+```
+
+Reasoning: it's a human-monitored mailbox (unlike `noreply@`), so if a
+recipient hits reply with a question about their gift, someone sees it
+and can help. The hub's transactional emails (invoices, magic links)
+still go from `noreply@targo.ca` — campaigns are different in that
+they invite a reply.
+
+If you ever need a `@gigafibre.ca` sender, that's a 30-min DNS + Mailjet
+setup (add the domain in Mailjet → publish SPF/DKIM CNAMEs in
+Cloudflare) — not done yet because all customer-facing email currently
+flows through `targo.ca`.
+
 ## Stage 2 — send the personalized French emails
 
 ## Dry run (no emails sent, HTML written for preview)
@@ -96,7 +117,7 @@ node send_gift_campaign.js \
   --subject  "🎁 Un cadeau pour vous, de la part de Gigafibre" \
   --amount   "50 $" \
   --expiry   "31 décembre 2026" \
-  --from     "Gigafibre <noreply@gigafibre.ca>" \
+  --from     "Gigafibre Support <support@targo.ca>" \
   --dry-run
 ```
 
@@ -118,7 +139,7 @@ node send_gift_campaign.js \
   --subject  "🎁 Un cadeau pour vous, de la part de Gigafibre" \
   --amount   "50 $" \
   --expiry   "31 décembre 2026" \
-  --from     "Gigafibre <noreply@gigafibre.ca>" \
+  --from     "Gigafibre Support <support@targo.ca>" \
   --smtp-host in-v3.mailjet.com --smtp-port 587 \
   --smtp-user "$SMTP_USER" --smtp-pass "$SMTP_PASS" \
   --throttle-ms 600