diff --git a/docs/deliverability.md b/docs/deliverability.md
index 5d9decf..bd1332f 100644
--- a/docs/deliverability.md
+++ b/docs/deliverability.md
@@ -158,12 +158,27 @@ the Hestia command above -> Verify.
 single most important monitoring tool. Microsoft already *accepts* our mail (~1.6%
 reputation rejects), so this tells us inbox-vs-junk + complaint rates.
 SNDS is **IP-based** (register the sending IPs), JMRP is the complaint feedback loop.
-1. **SNDS:** <https://sendersupport.olc.protection.outlook.com/snds/> -> "Request
-   access" -> register IPs: **207.174.124.94** and **207.174.124.107** (the two
-   live stream IPs; add .90 and .71 if you want full coverage). Verification goes
-   to a role address on the IP's domain.
-2. **JMRP:** <https://sendersupport.olc.protection.outlook.com/pm/> -> sign in with
-   a Microsoft account -> register the same IPs + a complaint-destination mailbox.
+
+> **2026 URL MIGRATION:** Microsoft moved SNDS off
+> `sendersupport.olc.protection.outlook.com`. The old `/snds/` and `/pm/` links now
+> 308-redirect to the new app at **`substrate.office.com/ip-domain-management-snds/`**.
+> The *footer/help* links on that page ("contact sender support", "Privacy",
+> "Microsoft Services Agreement") go to generic `microsoft.com` pages — that is
+> normal, they are boilerplate, NOT the broken task. **You must click "Log in"
+> (top-right) with a personal Microsoft account FIRST**; until you authenticate the
+> "Request Access" / "Junk Mail Reporting Program" links just bounce to
+> `login.microsoftonline.com`, which looks like a dead redirect but is the expected
+> auth step. After login the real forms render.
+
+1. **SNDS — Request Access:** open <https://snds.microsoft.com> -> **Log in** ->
+   left-nav **"Request Access"** (direct:
+   `https://substrate.office.com/ip-domain-management-snds/SNDS/AddNetwork`) ->
+   register IPs **207.174.124.94** and **207.174.124.107** (the two live stream IPs;
+   add .90 and .71 if you want full coverage). Verification goes to a role address
+   on the IP's domain (use `postmaster@` or `abuse@performancewest.net`, now live).
+2. **JMRP:** same site, left-nav **"Junk Mail Reporting Program"** (direct:
+   `https://substrate.office.com/ip-domain-management-snds/SNDS/Jmrp`) -> register
+   the same IPs + complaint-destination mailbox **`fbl@performancewest.net`**.
    Complaints then arrive as ARF emails.
 
 **✅ PREREQ DONE (2026-06-19):** the role mailboxes Microsoft needs now exist and