diff --git a/CHANGELOG.md b/CHANGELOG.md
index 46fa3c805..e904185b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -69,6 +69,12 @@ Docs: https://docs.openclaw.ai
 - Plugins/Install: clear stale install errors when an npm package is not found so follow-up install attempts report current state correctly. (#25073) Thanks @dalefrieswthat.
 - OpenAI Responses/Compaction: rewrite and unify the OpenAI Responses store patches to treat empty `baseUrl` as non-direct, honor `compat.supportsStore=false`, and auto-inject server-side compaction `context_management` for compatible direct OpenAI models (with per-model opt-out/threshold overrides). Landed from contributor PRs #16930 (@OiPunk), #22441 (@EdwardWu7), and #25088 (@MoerAI). Thanks @OiPunk, @EdwardWu7, and @MoerAI.
 
+## Unreleased
+
+### Fixes
+
+- Config/Doctor group allowlist diagnostics: align `groupPolicy: "allowlist"` warnings with per-channel runtime semantics by excluding Google Chat sender-list checks and by warning when no-fallback channels (for example iMessage) omit `groupAllowFrom`, with regression coverage. (#28477) Thanks @tonydehnke.
+
 ## 2026.2.26
 
 ### Changes
diff --git a/src/commands/doctor-config-flow.test.ts b/src/commands/doctor-config-flow.test.ts
index d4b032739..ff4763987 100644
--- a/src/commands/doctor-config-flow.test.ts
+++ b/src/commands/doctor-config-flow.test.ts
@@ -19,6 +19,21 @@ function expectGoogleChatDmAllowFromRepaired(cfg: unknown) {
   expect(typed.channels.googlechat.allowFrom).toBeUndefined();
 }
 
+async function collectDoctorWarnings(config: Record<string, unknown>): Promise<string[]> {
+  const noteSpy = vi.spyOn(noteModule, "note").mockImplementation(() => {});
+  try {
+    await runDoctorConfigWithInput({
+      config,
+      run: loadAndMaybeMigrateDoctorConfig,
+    });
+    return noteSpy.mock.calls
+      .filter((call) => call[1] === "Doctor warnings")
+      .map((call) => String(call[0]));
+  } finally {
+    noteSpy.mockRestore();
+  }
+}
+
 type DiscordGuildRule = {
   users: string[];
   roles: string[];
@@ -56,31 +71,59 @@ describe("doctor config flow", () => {
   });
 
   it("does not warn on mutable account allowlists when dangerous name matching is inherited", async () => {
-    const noteSpy = vi.spyOn(noteModule, "note").mockImplementation(() => {});
-    try {
-      await runDoctorConfigWithInput({
-        config: {
-          channels: {
-            slack: {
-              dangerouslyAllowNameMatching: true,
-              accounts: {
-                work: {
-                  allowFrom: ["alice"],
-                },
-              },
+    const doctorWarnings = await collectDoctorWarnings({
+      channels: {
+        slack: {
+          dangerouslyAllowNameMatching: true,
+          accounts: {
+            work: {
+              allowFrom: ["alice"],
             },
           },
         },
-        run: loadAndMaybeMigrateDoctorConfig,
-      });
+      },
+    });
+    expect(doctorWarnings.some((line) => line.includes("mutable allowlist"))).toBe(false);
+  });
 
-      const doctorWarnings = noteSpy.mock.calls
-        .filter((call) => call[1] === "Doctor warnings")
-        .map((call) => String(call[0]));
-      expect(doctorWarnings.some((line) => line.includes("mutable allowlist"))).toBe(false);
-    } finally {
-      noteSpy.mockRestore();
-    }
+  it("does not warn about sender-based group allowlist for googlechat", async () => {
+    const doctorWarnings = await collectDoctorWarnings({
+      channels: {
+        googlechat: {
+          groupPolicy: "allowlist",
+          accounts: {
+            work: {
+              groupPolicy: "allowlist",
+            },
+          },
+        },
+      },
+    });
+
+    expect(
+      doctorWarnings.some(
+        (line) => line.includes('groupPolicy is "allowlist"') && line.includes("groupAllowFrom"),
+      ),
+    ).toBe(false);
+  });
+
+  it("warns when imessage group allowlist is empty even if allowFrom is set", async () => {
+    const doctorWarnings = await collectDoctorWarnings({
+      channels: {
+        imessage: {
+          groupPolicy: "allowlist",
+          allowFrom: ["+15551234567"],
+        },
+      },
+    });
+
+    expect(
+      doctorWarnings.some(
+        (line) =>
+          line.includes('channels.imessage.groupPolicy is "allowlist"') &&
+          line.includes("does not fall back to allowFrom"),
+      ),
+    ).toBe(true);
   });
 
   it("drops unknown keys on repair", async () => {
diff --git a/src/commands/doctor-config-flow.ts b/src/commands/doctor-config-flow.ts
index 5c62a8c25..2b02cf45b 100644
--- a/src/commands/doctor-config-flow.ts
+++ b/src/commands/doctor-config-flow.ts
@@ -1267,10 +1267,34 @@ function detectEmptyAllowlistPolicy(cfg: OpenClawConfig): string[] {
 
   const warnings: string[] = [];
 
+  const usesSenderBasedGroupAllowlist = (channelName?: string): boolean => {
+    if (!channelName) {
+      return true;
+    }
+    // These channels enforce group access via channel/space config, not sender-based
+    // groupAllowFrom lists.
+    return !(channelName === "discord" || channelName === "slack" || channelName === "googlechat");
+  };
+
+  const allowsGroupAllowFromFallback = (channelName?: string): boolean => {
+    if (!channelName) {
+      return true;
+    }
+    // Keep doctor warnings aligned with runtime access semantics.
+    return !(
+      channelName === "googlechat" ||
+      channelName === "imessage" ||
+      channelName === "matrix" ||
+      channelName === "msteams" ||
+      channelName === "irc"
+    );
+  };
+
   const checkAccount = (
     account: Record<string, unknown>,
     prefix: string,
     parent?: Record<string, unknown>,
+    channelName?: string,
   ) => {
     const dmEntry = account.dm;
     const dm =
@@ -1289,10 +1313,6 @@ function detectEmptyAllowlistPolicy(cfg: OpenClawConfig): string[] {
       (parentDm?.policy as string | undefined) ??
       undefined;
 
-    if (dmPolicy !== "allowlist") {
-      return;
-    }
-
     const topAllowFrom =
       (account.allowFrom as Array<string | number> | undefined) ??
       (parent?.allowFrom as Array<string | number> | undefined);
@@ -1300,13 +1320,40 @@ function detectEmptyAllowlistPolicy(cfg: OpenClawConfig): string[] {
     const parentNestedAllowFrom = parentDm?.allowFrom as Array<string | number> | undefined;
     const effectiveAllowFrom = topAllowFrom ?? nestedAllowFrom ?? parentNestedAllowFrom;
 
-    if (hasAllowFromEntries(effectiveAllowFrom)) {
-      return;
+    if (dmPolicy === "allowlist" && !hasAllowFromEntries(effectiveAllowFrom)) {
+      warnings.push(
+        `- ${prefix}.dmPolicy is "allowlist" but allowFrom is empty — all DMs will be blocked. Add sender IDs to ${prefix}.allowFrom, or run "${formatCliCommand("openclaw doctor --fix")}" to auto-migrate from pairing store when entries exist.`,
+      );
     }
 
-    warnings.push(
-      `- ${prefix}.dmPolicy is "allowlist" but allowFrom is empty — all DMs will be blocked. Add sender IDs to ${prefix}.allowFrom, or run "${formatCliCommand("openclaw doctor --fix")}" to auto-migrate from pairing store when entries exist.`,
-    );
+    const groupPolicy =
+      (account.groupPolicy as string | undefined) ??
+      (parent?.groupPolicy as string | undefined) ??
+      undefined;
+
+    if (groupPolicy === "allowlist" && usesSenderBasedGroupAllowlist(channelName)) {
+      const rawGroupAllowFrom =
+        (account.groupAllowFrom as Array<string | number> | undefined) ??
+        (parent?.groupAllowFrom as Array<string | number> | undefined);
+      // Match runtime semantics: resolveGroupAllowFromSources treats
+      // empty arrays as unset and falls back to allowFrom.
+      const groupAllowFrom = hasAllowFromEntries(rawGroupAllowFrom) ? rawGroupAllowFrom : undefined;
+      const fallbackToAllowFrom = allowsGroupAllowFromFallback(channelName);
+      const effectiveGroupAllowFrom =
+        groupAllowFrom ?? (fallbackToAllowFrom ? effectiveAllowFrom : undefined);
+
+      if (!hasAllowFromEntries(effectiveGroupAllowFrom)) {
+        if (fallbackToAllowFrom) {
+          warnings.push(
+            `- ${prefix}.groupPolicy is "allowlist" but groupAllowFrom (and allowFrom) is empty — all group messages will be silently dropped. Add sender IDs to ${prefix}.groupAllowFrom or ${prefix}.allowFrom, or set groupPolicy to "open".`,
+          );
+        } else {
+          warnings.push(
+            `- ${prefix}.groupPolicy is "allowlist" but groupAllowFrom is empty — this channel does not fall back to allowFrom, so all group messages will be silently dropped. Add sender IDs to ${prefix}.groupAllowFrom, or set groupPolicy to "open".`,
+          );
+        }
+      }
+    }
   };
 
   for (const [channelName, channelConfig] of Object.entries(
@@ -1315,7 +1362,7 @@ function detectEmptyAllowlistPolicy(cfg: OpenClawConfig): string[] {
     if (!channelConfig || typeof channelConfig !== "object") {
       continue;
     }
-    checkAccount(channelConfig, `channels.${channelName}`);
+    checkAccount(channelConfig, `channels.${channelName}`, undefined, channelName);
 
     const accounts = channelConfig.accounts;
     if (accounts && typeof accounts === "object") {
@@ -1325,7 +1372,12 @@ function detectEmptyAllowlistPolicy(cfg: OpenClawConfig): string[] {
         if (!account || typeof account !== "object") {
           continue;
         }
-        checkAccount(account, `channels.${channelName}.accounts.${accountId}`, channelConfig);
+        checkAccount(
+          account,
+          `channels.${channelName}.accounts.${accountId}`,
+          channelConfig,
+          channelName,
+        );
       }
     }
   }