disable emails to all guests (#18628)

Co-authored-by: CarinaWolli <wollencarina@gmail.com>

packages/features/ee/workflows/lib/reminders/reminderScheduler.ts

@@ -6,6 +6,7 @@ import {
 import type { Workflow, WorkflowStep } from "@calcom/features/ee/workflows/lib/types";
 import { checkSMSRateLimit } from "@calcom/lib/checkRateLimitAndThrowError";
 import { SENDER_NAME } from "@calcom/lib/constants";
+import prisma from "@calcom/prisma";
 import { SchedulingType, WorkflowActions, WorkflowTriggerEvents } from "@calcom/prisma/enums";
 import type { CalendarEvent } from "@calcom/types/Calendar";
 
@@ -106,7 +107,25 @@ const processWorkflowStep = async (
           ? [emailAttendeeSendToOverride]
           : evt.attendees?.map((attendee) => attendee.email);
 
-        sendTo = attendees;
+        const limitGuestsDate = new Date("2025-01-13");
+
+        if (workflow.userId) {
+          const user = await prisma.user.findFirst({
+            where: {
+              id: workflow.userId,
+            },
+            select: {
+              createdDate: true,
+            },
+          });
+          if (user?.createdDate && user.createdDate > limitGuestsDate) {
+            sendTo = attendees.slice(0, 1);
+          } else {
+            sendTo = attendees;
+          }
+        } else {
+          sendTo = attendees;
+        }
 
         break;
     }