diff --git a/src/__tests__/data-cache.test.ts b/src/__tests__/data-cache.test.ts
index f5d90db..78e1db5 100644
--- a/src/__tests__/data-cache.test.ts
+++ b/src/__tests__/data-cache.test.ts
@@ -155,15 +155,24 @@ describe("generateLocalValues", () => {
 // ─── getDynamicEmail ────────────────────────────────────────────────────────
 
 describe("getDynamicEmail", () => {
-  it("prefers global dynamicEmail over local", () => {
-    const globalValues: GlobalPlaceholders = {
-      "{{global.shortid}}": "g1",
-      "{{global.fullName}}": "Global User",
-      "{{global.email}}": "g@test.com",
-      "{{global.dynamicEmail}}": "global-dyn@test.com",
-      "{{global.phoneNumber}}": "0000000000",
-    };
-    expect(getDynamicEmail(localValues, globalValues)).toBe("global-dyn@test.com");
+  const globalValues: GlobalPlaceholders = {
+    "{{global.shortid}}": "g1",
+    "{{global.fullName}}": "Global User",
+    "{{global.email}}": "g@test.com",
+    "{{global.dynamicEmail}}": "global-dyn@test.com",
+    "{{global.phoneNumber}}": "0000000000",
+  };
+
+  it("returns global dynamicEmail when preferGlobal=true", () => {
+    expect(getDynamicEmail(localValues, globalValues, true)).toBe("global-dyn@test.com");
+  });
+
+  it("returns local dynamicEmail when preferGlobal=false even if global is set", () => {
+    expect(getDynamicEmail(localValues, globalValues, false)).toBe("dyn@test.com");
+  });
+
+  it("returns local dynamicEmail when preferGlobal defaults to false", () => {
+    expect(getDynamicEmail(localValues, globalValues)).toBe("dyn@test.com");
   });
 
   it("falls back to local dynamicEmail when global is not provided", () => {
diff --git a/src/data-cache.ts b/src/data-cache.ts
index 216c24e..20fcf8a 100644
--- a/src/data-cache.ts
+++ b/src/data-cache.ts
@@ -67,6 +67,7 @@ export type ProcessPlaceholdersResult = {
   localValues: LocalPlaceholders;
   globalValues?: GlobalPlaceholders;
   projectDataValues?: ProjectDataPlaceholders;
+  hasGlobalPlaceholders: boolean;
 };
 
 // =============================================================================
@@ -527,18 +528,25 @@ export async function processPlaceholders(
     localValues,
     globalValues,
     projectDataValues,
+    hasGlobalPlaceholders,
   };
 }
 
 /**
  * Gets the dynamic email to use for email extraction.
- * Prefers global email if available, otherwise falls back to local email.
+ * Only prefers global email when preferGlobal is true (i.e. the current step
+ * set actually references {{global.*}} placeholders). Otherwise always returns
+ * the run-scoped email so each runSteps call gets its own isolated address.
  */
 export function getDynamicEmail(
   localValues: LocalPlaceholders,
   globalValues?: GlobalPlaceholders,
+  preferGlobal = false,
 ): string {
-  return globalValues?.["{{global.dynamicEmail}}"] || localValues["{{run.dynamicEmail}}"];
+  if (preferGlobal && globalValues?.["{{global.dynamicEmail}}"]) {
+    return globalValues["{{global.dynamicEmail}}"];
+  }
+  return localValues["{{run.dynamicEmail}}"];
 }
 
 /**
diff --git a/src/index.ts b/src/index.ts
index 1e4d648..a2a67bd 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -137,7 +137,7 @@ export const runSteps = async ({
   }
 
   // Process dynamic placeholders before running steps
-  const { processedSteps, processedAssertions, localValues, globalValues, projectDataValues } =
+  const { processedSteps, processedAssertions, localValues, globalValues, projectDataValues, hasGlobalPlaceholders } =
     await processPlaceholders(steps, assertions, executionId, projectId);
 
   logger.info(`Starting step-by-step execution of ${processedSteps.length} steps.`);
@@ -163,12 +163,11 @@ export const runSteps = async ({
   let errorInStepExecution,
     stepThatFailed: string = "";
   for (let i = 0; i < processedSteps.length; i++) {
-    // Resolve email placeholders lazily just before step execution
-    // This ensures the email has arrived before we try to extract content
-    // Use global email if available, otherwise fall back to run email, and then use the supplied email from regex
-
-    // ~~~ This logic needs to be fixed as global email will always be present if executionId is provided ~~~
-    const dynamicEmail = getDynamicEmail(localValues, globalValues);
+    // Resolve email placeholders lazily just before step execution.
+    // Only use the shared global email when these steps actually reference
+    // {{global.*}} placeholders; otherwise each runSteps call gets its own
+    // run-scoped address so independent flows don't bleed into each other.
+    const dynamicEmail = getDynamicEmail(localValues, globalValues, hasGlobalPlaceholders);
 
     // Re-process step data and waitUntil with current localValues to pick up extracted values from previous steps
     let currentStep = processedSteps[i];