diff --git a/apps/api/v1/lib/validations/attendee.ts b/apps/api/v1/lib/validations/attendee.ts
index b1be1c2024..17338f0e8f 100644
--- a/apps/api/v1/lib/validations/attendee.ts
+++ b/apps/api/v1/lib/validations/attendee.ts
@@ -1,5 +1,6 @@
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
 import { _AttendeeModel as Attendee } from "@calcom/prisma/zod";
 
 import { timeZone } from "~/lib/validations/shared/timeZone";
@@ -14,7 +15,7 @@ export const schemaAttendeeBaseBodyParams = Attendee.pick({
 const schemaAttendeeCreateParams = z
   .object({
     bookingId: z.number().int(),
-    email: z.string().email(),
+    email: emailSchema,
     name: z.string(),
     timeZone: timeZone,
   })
@@ -23,7 +24,7 @@ const schemaAttendeeCreateParams = z
 const schemaAttendeeEditParams = z
   .object({
     name: z.string().optional(),
-    email: z.string().email().optional(),
+    email: emailSchema.optional(),
     timeZone: timeZone.optional(),
   })
   .strict();
diff --git a/apps/api/v1/lib/validations/shared/queryAttendeeEmail.ts b/apps/api/v1/lib/validations/shared/queryAttendeeEmail.ts
index d7919bf53f..c90abc5b42 100644
--- a/apps/api/v1/lib/validations/shared/queryAttendeeEmail.ts
+++ b/apps/api/v1/lib/validations/shared/queryAttendeeEmail.ts
@@ -1,16 +1,18 @@
 import { withValidation } from "next-validations";
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
+
 import { baseApiParams } from "./baseApiParams";
 
 // Extracted out as utility function so can be reused
 // at different endpoints that require this validation.
 export const schemaQueryAttendeeEmail = baseApiParams.extend({
-  attendeeEmail: z.string().email(),
+  attendeeEmail: emailSchema,
 });
 
 export const schemaQuerySingleOrMultipleAttendeeEmails = z.object({
-  attendeeEmail: z.union([z.string().email(), z.array(z.string().email())]).optional(),
+  attendeeEmail: z.union([emailSchema, z.array(emailSchema)]).optional(),
 });
 
 export const withValidQueryAttendeeEmail = withValidation({
diff --git a/apps/api/v1/lib/validations/shared/queryUserEmail.ts b/apps/api/v1/lib/validations/shared/queryUserEmail.ts
index 342f36264a..49f96f6354 100644
--- a/apps/api/v1/lib/validations/shared/queryUserEmail.ts
+++ b/apps/api/v1/lib/validations/shared/queryUserEmail.ts
@@ -1,16 +1,18 @@
 import { withValidation } from "next-validations";
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
+
 import { baseApiParams } from "./baseApiParams";
 
 // Extracted out as utility function so can be reused
 // at different endpoints that require this validation.
 export const schemaQueryUserEmail = baseApiParams.extend({
-  email: z.string().email(),
+  email: emailSchema,
 });
 
 export const schemaQuerySingleOrMultipleUserEmails = z.object({
-  email: z.union([z.string().email(), z.array(z.string().email())]),
+  email: z.union([emailSchema, z.array(emailSchema)]),
 });
 
 export const withValidQueryUserEmail = withValidation({
diff --git a/apps/api/v1/lib/validations/user.ts b/apps/api/v1/lib/validations/user.ts
index d984613066..2b86addd21 100644
--- a/apps/api/v1/lib/validations/user.ts
+++ b/apps/api/v1/lib/validations/user.ts
@@ -1,5 +1,6 @@
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
 import { checkUsername } from "@calcom/lib/server/checkUsername";
 import { _UserModel as User } from "@calcom/prisma/zod";
 import { iso8601 } from "@calcom/prisma/zod-utils";
@@ -92,7 +93,7 @@ export const schemaUserBaseBodyParams = User.pick({
 // Here we can both require or not (adding optional or nullish) and also rewrite validations for any value
 // for example making weekStart only accept weekdays as input
 const schemaUserEditParams = z.object({
-  email: z.string().email().toLowerCase(),
+  email: emailSchema.toLowerCase(),
   username: usernameSchema,
   weekStart: z.nativeEnum(weekdays).optional(),
   brandColor: z.string().min(4).max(9).regex(/^#/).optional(),
@@ -115,7 +116,7 @@ const schemaUserEditParams = z.object({
 // merging both BaseBodyParams with RequiredParams, and omiting whatever we want at the end.
 
 const schemaUserCreateParams = z.object({
-  email: z.string().email().toLowerCase(),
+  email: emailSchema.toLowerCase(),
   username: usernameSchema,
   weekStart: z.nativeEnum(weekdays).optional(),
   brandColor: z.string().min(4).max(9).regex(/^#/).optional(),
diff --git a/apps/web/components/settings/SecondaryEmailModal.tsx b/apps/web/components/settings/SecondaryEmailModal.tsx
index 9bc540ed15..b4643af92a 100644
--- a/apps/web/components/settings/SecondaryEmailModal.tsx
+++ b/apps/web/components/settings/SecondaryEmailModal.tsx
@@ -3,6 +3,7 @@ import { useEffect } from "react";
 import { useForm } from "react-hook-form";
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import {
   Dialog,
@@ -37,7 +38,7 @@ const SecondaryEmailModal = ({
   const formMethods = useForm<FormValues>({
     resolver: zodResolver(
       z.object({
-        email: z.string().email(),
+        email: emailSchema,
       })
     ),
   });
diff --git a/apps/web/components/setup/AdminUser.tsx b/apps/web/components/setup/AdminUser.tsx
index ee95820606..4ee1724698 100644
--- a/apps/web/components/setup/AdminUser.tsx
+++ b/apps/web/components/setup/AdminUser.tsx
@@ -7,6 +7,7 @@ import { z } from "zod";
 
 import { isPasswordValid } from "@calcom/features/auth/lib/isPasswordValid";
 import { WEBSITE_URL } from "@calcom/lib/constants";
+import { emailRegex } from "@calcom/lib/emailSchema";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import { EmailField, EmptyScreen, Label, PasswordField, TextField } from "@calcom/ui";
 
@@ -39,7 +40,7 @@ export const AdminUser = (props: { onSubmit: () => void; onError: () => void; on
     username: z
       .string()
       .refine((val) => val.trim().length >= 1, { message: t("at_least_characters", { count: 1 }) }),
-    email_address: z.string().email({ message: t("enter_valid_email") }),
+    email_address: z.string().regex(emailRegex, { message: t("enter_valid_email") }),
     full_name: z.string().min(3, t("at_least_characters", { count: 3 })),
     password: z.string().superRefine((data, ctx) => {
       const isStrict = true;
diff --git a/apps/web/lib/signup/getServerSideProps.tsx b/apps/web/lib/signup/getServerSideProps.tsx
index 6e4377bf22..d3d2804349 100644
--- a/apps/web/lib/signup/getServerSideProps.tsx
+++ b/apps/web/lib/signup/getServerSideProps.tsx
@@ -6,20 +6,21 @@ import { checkPremiumUsername } from "@calcom/features/ee/common/lib/checkPremiu
 import { isSAMLLoginEnabled } from "@calcom/features/ee/sso/lib/saml";
 import { getFeatureFlag } from "@calcom/features/flags/server/utils";
 import { IS_SELF_HOSTED, WEBAPP_URL } from "@calcom/lib/constants";
+import { emailSchema } from "@calcom/lib/emailSchema";
 import slugify from "@calcom/lib/slugify";
 import { teamMetadataSchema } from "@calcom/prisma/zod-utils";
 
 import { IS_GOOGLE_LOGIN_ENABLED } from "@server/lib/constants";
 import { ssrInit } from "@server/lib/ssr";
 
-const checkValidEmail = (email: string) => z.string().email().safeParse(email).success;
+const checkValidEmail = (email: string) => emailSchema.safeParse(email).success;
 
 const querySchema = z.object({
   username: z
     .string()
     .optional()
     .transform((val) => val || ""),
-  email: z.string().email().optional(),
+  email: emailSchema.optional(),
 });
 
 export const getServerSideProps = async (ctx: GetServerSidePropsContext) => {
diff --git a/apps/web/modules/auth/login-view.tsx b/apps/web/modules/auth/login-view.tsx
index c8341098b7..478ec4523e 100644
--- a/apps/web/modules/auth/login-view.tsx
+++ b/apps/web/modules/auth/login-view.tsx
@@ -12,6 +12,7 @@ import { z } from "zod";
 import { SAMLLogin } from "@calcom/features/auth/SAMLLogin";
 import { ErrorCode } from "@calcom/features/auth/lib/ErrorCode";
 import { HOSTED_CAL_FEATURES, WEBAPP_URL, WEBSITE_URL } from "@calcom/lib/constants";
+import { emailRegex } from "@calcom/lib/emailSchema";
 import { getSafeRedirectUrl } from "@calcom/lib/getSafeRedirectUrl";
 import { useCompatSearchParams } from "@calcom/lib/hooks/useCompatSearchParams";
 import { useLastUsed, LastUsed } from "@calcom/lib/hooks/useLastUsed";
@@ -59,7 +60,7 @@ PageProps & WithNonceProps<{}>) {
       email: z
         .string()
         .min(1, `${t("error_required_field")}`)
-        .email(`${t("enter_valid_email")}`),
+        .regex(emailRegex, `${t("enter_valid_email")}`),
       ...(!!totpEmail ? {} : { password: z.string().min(1, `${t("error_required_field")}`) }),
     })
     // Passthrough other fields like totpCode
diff --git a/apps/web/modules/settings/my-account/profile-view.tsx b/apps/web/modules/settings/my-account/profile-view.tsx
index c737c3cd26..f524acfa9e 100644
--- a/apps/web/modules/settings/my-account/profile-view.tsx
+++ b/apps/web/modules/settings/my-account/profile-view.tsx
@@ -12,6 +12,7 @@ import { z } from "zod";
 import { ErrorCode } from "@calcom/features/auth/lib/ErrorCode";
 import SectionBottomActions from "@calcom/features/settings/SectionBottomActions";
 import { APP_NAME, FULL_NAME_LENGTH_MAX_LIMIT } from "@calcom/lib/constants";
+import { emailSchema } from "@calcom/lib/emailSchema";
 import { getUserAvatarUrl } from "@calcom/lib/getAvatarUrl";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import { md } from "@calcom/lib/markdownIt";
@@ -523,12 +524,12 @@ const ProfileForm = ({
       .max(FULL_NAME_LENGTH_MAX_LIMIT, {
         message: t("max_limit_allowed_hint", { limit: FULL_NAME_LENGTH_MAX_LIMIT }),
       }),
-    email: z.string().email(),
+    email: emailSchema,
     bio: z.string(),
     secondaryEmails: z.array(
       z.object({
         id: z.number(),
-        email: z.string().email(),
+        email: emailSchema,
         emailVerified: z.union([z.string(), z.null()]).optional(),
         emailPrimary: z.boolean().optional(),
       })
diff --git a/apps/web/pages/api/auth/forgot-password.ts b/apps/web/pages/api/auth/forgot-password.ts
index 6cbe28bd20..f749804ae4 100644
--- a/apps/web/pages/api/auth/forgot-password.ts
+++ b/apps/web/pages/api/auth/forgot-password.ts
@@ -1,17 +1,13 @@
 import type { NextApiRequest, NextApiResponse } from "next";
-import { z } from "zod";
 
 import { passwordResetRequest } from "@calcom/features/auth/lib/passwordResetRequest";
 import { checkRateLimitAndThrowError } from "@calcom/lib/checkRateLimitAndThrowError";
+import { emailSchema } from "@calcom/lib/emailSchema";
 import { defaultHandler } from "@calcom/lib/server";
 import prisma from "@calcom/prisma";
 
 async function handler(req: NextApiRequest, res: NextApiResponse) {
-  const email = z
-    .string()
-    .email()
-    .transform((val) => val.toLowerCase())
-    .safeParse(req.body?.email);
+  const email = emailSchema.transform((val) => val.toLowerCase()).safeParse(req.body?.email);
 
   if (!email.success) {
     return res.status(400).json({ message: "email is required" });
diff --git a/apps/web/pages/api/auth/setup.ts b/apps/web/pages/api/auth/setup.ts
index fb196cc325..c092a7505a 100644
--- a/apps/web/pages/api/auth/setup.ts
+++ b/apps/web/pages/api/auth/setup.ts
@@ -3,6 +3,7 @@ import z from "zod";
 
 import { hashPassword } from "@calcom/features/auth/lib/hashPassword";
 import { isPasswordValid } from "@calcom/features/auth/lib/isPasswordValid";
+import { emailRegex } from "@calcom/lib/emailSchema";
 import { HttpError } from "@calcom/lib/http-error";
 import { defaultHandler, defaultResponder } from "@calcom/lib/server";
 import slugify from "@calcom/lib/slugify";
@@ -14,7 +15,7 @@ const querySchema = z.object({
     .string()
     .refine((val) => val.trim().length >= 1, { message: "Please enter at least one character" }),
   full_name: z.string().min(3, "Please enter at least 3 characters"),
-  email_address: z.string().email({ message: "Please enter a valid email" }),
+  email_address: z.string().regex(emailRegex, { message: "Please enter a valid email" }),
   password: z.string().refine((val) => isPasswordValid(val.trim(), false, true), {
     message:
       "The password must be a minimum of 15 characters long containing at least one number and have a mixture of uppercase and lowercase letters",
diff --git a/apps/web/pages/api/sync/helpscout/index.ts b/apps/web/pages/api/sync/helpscout/index.ts
index 7110d1d040..3931f75758 100644
--- a/apps/web/pages/api/sync/helpscout/index.ts
+++ b/apps/web/pages/api/sync/helpscout/index.ts
@@ -3,6 +3,7 @@ import type { NextApiRequest, NextApiResponse } from "next";
 import getRawBody from "raw-body";
 import z from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
 import { default as webPrisma } from "@calcom/prisma";
 
 export const config = {
@@ -13,7 +14,7 @@ export const config = {
 
 const helpscoutRequestBodySchema = z.object({
   customer: z.object({
-    email: z.string().email(),
+    email: emailSchema,
   }),
 });
 
diff --git a/packages/app-store/exchangecalendar/api/_postAdd.ts b/packages/app-store/exchangecalendar/api/_postAdd.ts
index dbea3db769..0a7709f4e2 100644
--- a/packages/app-store/exchangecalendar/api/_postAdd.ts
+++ b/packages/app-store/exchangecalendar/api/_postAdd.ts
@@ -3,6 +3,7 @@ import type { NextApiRequest, NextApiResponse } from "next";
 import { z } from "zod";
 
 import { symmetricEncrypt } from "@calcom/lib/crypto";
+import { emailSchema } from "@calcom/lib/emailSchema";
 import logger from "@calcom/lib/logger";
 import { defaultResponder } from "@calcom/lib/server";
 import prisma from "@calcom/prisma";
@@ -14,7 +15,7 @@ import { CalendarService } from "../lib";
 const formSchema = z
   .object({
     url: z.string().url(),
-    username: z.string().email(),
+    username: emailSchema,
     password: z.string(),
     authenticationMethod: z.number().default(ExchangeAuthentication.STANDARD),
     exchangeVersion: z.number().default(ExchangeVersion.Exchange2016),
diff --git a/packages/app-store/exchangecalendar/pages/setup/index.tsx b/packages/app-store/exchangecalendar/pages/setup/index.tsx
index 6acde1651d..92ba50af9a 100644
--- a/packages/app-store/exchangecalendar/pages/setup/index.tsx
+++ b/packages/app-store/exchangecalendar/pages/setup/index.tsx
@@ -5,6 +5,7 @@ import { Controller, useForm } from "react-hook-form";
 import { Toaster } from "react-hot-toast";
 import z from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import { Alert, Button, EmailField, Form, PasswordField, SelectField, TextField } from "@calcom/ui";
 
@@ -22,7 +23,7 @@ interface IFormData {
 const schema = z
   .object({
     url: z.string().url(),
-    username: z.string().email(),
+    username: emailSchema,
     password: z.string(),
     authenticationMethod: z.number().default(ExchangeAuthentication.STANDARD),
     exchangeVersion: z.number().default(ExchangeVersion.Exchange2016),
diff --git a/packages/app-store/routing-forms/trpc/response.handler.ts b/packages/app-store/routing-forms/trpc/response.handler.ts
index 728355a844..f66bc5ce09 100644
--- a/packages/app-store/routing-forms/trpc/response.handler.ts
+++ b/packages/app-store/routing-forms/trpc/response.handler.ts
@@ -1,6 +1,7 @@
 import { Prisma } from "@prisma/client";
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
 import logger from "@calcom/lib/logger";
 import { safeStringify } from "@calcom/lib/safeStringify";
 import type { PrismaClient } from "@calcom/prisma";
@@ -75,7 +76,7 @@ export const responseHandler = async ({ ctx, input }: ResponseHandlerOptions) =>
         }
         let schema;
         if (field.type === "email") {
-          schema = z.string().email();
+          schema = emailSchema;
         } else if (field.type === "phone") {
           schema = z.any();
         } else {
diff --git a/packages/features/auth/SAMLLogin.tsx b/packages/features/auth/SAMLLogin.tsx
index 75420c5503..ba410c6543 100644
--- a/packages/features/auth/SAMLLogin.tsx
+++ b/packages/features/auth/SAMLLogin.tsx
@@ -4,6 +4,7 @@ import { useFormContext } from "react-hook-form";
 import z from "zod";
 
 import { HOSTED_CAL_FEATURES } from "@calcom/lib/constants";
+import { emailRegex } from "@calcom/lib/emailSchema";
 import { LastUsed, useLastUsed } from "@calcom/lib/hooks/useLastUsed";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import { trpc } from "@calcom/trpc/react";
@@ -17,7 +18,7 @@ interface Props {
 }
 
 const schema = z.object({
-  email: z.string().email({ message: "Please enter a valid email" }),
+  email: z.string().regex(emailRegex, { message: "Please enter a valid email" }),
 });
 
 export function SAMLLogin({
diff --git a/packages/features/users/components/UserTable/EditSheet/EditUserForm.tsx b/packages/features/users/components/UserTable/EditSheet/EditUserForm.tsx
index 860116bf9b..2afd989ffc 100644
--- a/packages/features/users/components/UserTable/EditSheet/EditUserForm.tsx
+++ b/packages/features/users/components/UserTable/EditSheet/EditUserForm.tsx
@@ -5,6 +5,7 @@ import { useMemo, useState } from "react";
 import { Controller, useForm, useFormContext } from "react-hook-form";
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
 import { useLocale } from "@calcom/lib/hooks/useLocale";
 import { MembershipRole } from "@calcom/prisma/enums";
 import { trpc, type RouterOutputs } from "@calcom/trpc/react";
@@ -46,7 +47,7 @@ const attributeSchema = z.object({
 const editSchema = z.object({
   name: z.string(),
   username: z.string(),
-  email: z.string().email(),
+  email: emailSchema,
   avatar: z.string(),
   bio: z.string(),
   role: z.enum([MembershipRole.MEMBER, MembershipRole.ADMIN, MembershipRole.OWNER]),
diff --git a/packages/lib/emailSchema.ts b/packages/lib/emailSchema.ts
new file mode 100644
index 0000000000..72d94cce3f
--- /dev/null
+++ b/packages/lib/emailSchema.ts
@@ -0,0 +1,7 @@
+import { z } from "zod";
+
+/** @see https://github.com/colinhacks/zod/issues/3155#issuecomment-2060045794 */
+export const emailRegex =
+  /^(?!\.)(?!.*\.\.)([A-Z0-9_+-\.']*)[A-Z0-9_+'-]@([A-Z0-9][A-Z0-9\-]*\.)+[A-Z]{2,}$/i;
+
+export const emailSchema = z.string().regex(emailRegex);
diff --git a/packages/prisma/schema.prisma b/packages/prisma/schema.prisma
index afb86fd9c0..0bb3556961 100644
--- a/packages/prisma/schema.prisma
+++ b/packages/prisma/schema.prisma
@@ -202,7 +202,7 @@ model DestinationCalendar {
   id           Int         @id @default(autoincrement())
   integration  String
   externalId   String
-  /// @zod.email()
+  /// @zod.custom(imports.emailSchema)
   primaryEmail String?
   user         User?       @relation(fields: [userId], references: [id], onDelete: Cascade)
   userId       Int?        @unique
@@ -247,7 +247,7 @@ model User {
   id                  Int                  @id @default(autoincrement())
   username            String?
   name                String?
-  /// @zod.email()
+  /// @zod.custom(imports.emailSchema)
   email               String
   emailVerified       DateTime?
   password            UserPassword?
@@ -578,7 +578,7 @@ model Booking {
   user                         User?                          @relation(fields: [userId], references: [id], onDelete: Cascade)
   userId                       Int?
   // User's email at the time of booking
-  /// @zod.email()
+  /// @zod.custom(imports.emailSchema)
   userPrimaryEmail             String?
   references                   BookingReference[]
   eventType                    EventType?                     @relation(fields: [eventTypeId], references: [id])
diff --git a/packages/prisma/zod-utils.ts b/packages/prisma/zod-utils.ts
index 23cb4b2a04..d7194b0955 100644
--- a/packages/prisma/zod-utils.ts
+++ b/packages/prisma/zod-utils.ts
@@ -18,6 +18,7 @@ import { isPasswordValid } from "@calcom/features/auth/lib/isPasswordValid";
 import type { FieldType as FormBuilderFieldType } from "@calcom/features/form-builder/schema";
 import { fieldsSchema as formBuilderFieldsSchema } from "@calcom/features/form-builder/schema";
 import { isSupportedTimeZone } from "@calcom/lib/date-fns";
+import { emailSchema as emailRegexSchema, emailRegex } from "@calcom/lib/emailSchema";
 import { slugify } from "@calcom/lib/slugify";
 import { EventTypeCustomInputType } from "@calcom/prisma/enums";
 
@@ -699,11 +700,12 @@ export const unlockedManagedEventTypeProps = {
   destinationCalendar: allManagedEventTypeProps.destinationCalendar,
 };
 
+export const emailSchema = emailRegexSchema;
+
 // The PR at https://github.com/colinhacks/zod/pull/2157 addresses this issue and improves email validation
 // I introduced this refinement(to be used with z.email()) as a short term solution until we upgrade to a zod
 // version that will include updates in the above PR.
 export const emailSchemaRefinement = (value: string) => {
-  const emailRegex = /^([A-Z0-9_+-]+\.?)*[A-Z0-9_+-]@([A-Z0-9][A-Z0-9-]*\.)+[A-Z]{2,}$/i;
   return emailRegex.test(value);
 };
 
@@ -711,7 +713,7 @@ export const signupSchema = z.object({
   // Username is marked optional here because it's requirement depends on if it's the Organization invite or a team invite which isn't easily done in zod
   // It's better handled beyond zod in `validateAndGetCorrectedUsernameAndEmail`
   username: z.string().optional(),
-  email: z.string().email({ message: "Invalid email" }),
+  email: z.string().regex(emailRegex, { message: "Invalid email" }),
   password: z.string().superRefine((data, ctx) => {
     const isStrict = false;
     const result = isPasswordValid(data, true, isStrict);
@@ -730,7 +732,7 @@ export const signupSchema = z.object({
 });
 
 export const ZVerifyCodeInputSchema = z.object({
-  email: z.string().email(),
+  email: emailSchema,
   code: z.string(),
 });
 
@@ -743,4 +745,4 @@ export const getStringAsNumberRequiredSchema = (t: TFunction) =>
 export const bookingSeatDataSchema = z.object({
   description: z.string().optional(),
   responses: bookingResponses,
-});
+});
\ No newline at end of file
diff --git a/packages/trpc/server/routers/publicViewer/samlTenantProduct.schema.ts b/packages/trpc/server/routers/publicViewer/samlTenantProduct.schema.ts
index f54d1e47cf..c64ab2b78a 100644
--- a/packages/trpc/server/routers/publicViewer/samlTenantProduct.schema.ts
+++ b/packages/trpc/server/routers/publicViewer/samlTenantProduct.schema.ts
@@ -1,7 +1,9 @@
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
+
 export const ZSamlTenantProductInputSchema = z.object({
-  email: z.string().email(),
+  email: emailSchema,
 });
 
 export type TSamlTenantProductInputSchema = z.infer<typeof ZSamlTenantProductInputSchema>;
diff --git a/packages/trpc/server/routers/viewer/admin/createSelfHostedLicenseKey.schema.ts b/packages/trpc/server/routers/viewer/admin/createSelfHostedLicenseKey.schema.ts
index 64189e28f5..7b6010bded 100644
--- a/packages/trpc/server/routers/viewer/admin/createSelfHostedLicenseKey.schema.ts
+++ b/packages/trpc/server/routers/viewer/admin/createSelfHostedLicenseKey.schema.ts
@@ -1,5 +1,7 @@
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
+
 const BillingType = z.enum(["PER_BOOKING", "PER_USER"]);
 const BillingPeriod = z.enum(["MONTHLY", "ANNUALLY"]);
 
@@ -9,7 +11,7 @@ export const ZCreateSelfHostedLicenseSchema = z.object({
   entityPrice: z.number().nonnegative(),
   billingPeriod: BillingPeriod,
   overages: z.number().nonnegative(),
-  billingEmail: z.string().email(),
+  billingEmail: emailSchema,
 });
 
 export type TCreateSelfHostedLicenseSchema = z.infer<typeof ZCreateSelfHostedLicenseSchema>;
diff --git a/packages/trpc/server/routers/viewer/auth/resendVerifyEmail.schema.ts b/packages/trpc/server/routers/viewer/auth/resendVerifyEmail.schema.ts
index 888ebe9d4d..a6aef6f296 100644
--- a/packages/trpc/server/routers/viewer/auth/resendVerifyEmail.schema.ts
+++ b/packages/trpc/server/routers/viewer/auth/resendVerifyEmail.schema.ts
@@ -1,8 +1,10 @@
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
+
 export const ZResendVerifyEmailSchema = z
   .object({
-    email: z.string().email(),
+    email: emailSchema,
   })
   .optional();
 
diff --git a/packages/trpc/server/routers/viewer/organizations/create.schema.ts b/packages/trpc/server/routers/viewer/organizations/create.schema.ts
index c9e4dc9691..69a37d262d 100644
--- a/packages/trpc/server/routers/viewer/organizations/create.schema.ts
+++ b/packages/trpc/server/routers/viewer/organizations/create.schema.ts
@@ -1,5 +1,6 @@
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
 import slugify from "@calcom/lib/slugify";
 
 export enum BillingPeriod {
@@ -10,7 +11,7 @@ export enum BillingPeriod {
 export const ZCreateInputSchema = z.object({
   name: z.string(),
   slug: z.string().transform((val) => slugify(val.trim())),
-  orgOwnerEmail: z.string().email(),
+  orgOwnerEmail: emailSchema,
   language: z.string().optional(),
   seats: z.number().optional(),
   pricePerSeat: z.number().optional(),
diff --git a/packages/trpc/server/routers/viewer/teams/inviteMember/inviteMember.schema.ts b/packages/trpc/server/routers/viewer/teams/inviteMember/inviteMember.schema.ts
index 02b8ac0095..79059bd47a 100644
--- a/packages/trpc/server/routers/viewer/teams/inviteMember/inviteMember.schema.ts
+++ b/packages/trpc/server/routers/viewer/teams/inviteMember/inviteMember.schema.ts
@@ -1,6 +1,7 @@
 import { z } from "zod";
 
 import { MAX_NB_INVITES } from "@calcom/lib/constants";
+import { emailSchema } from "@calcom/lib/emailSchema";
 import { MembershipRole } from "@calcom/prisma/enums";
 
 export const ZInviteMemberInputSchema = z.object({
@@ -12,7 +13,7 @@ export const ZInviteMemberInputSchema = z.object({
         .union([
           z.string(),
           z.object({
-            email: z.string().email(),
+            email: emailSchema,
             role: z.nativeEnum(MembershipRole),
           }),
         ])
@@ -47,7 +48,7 @@ export const ZInviteMemberInputSchema = z.object({
     .refine(
       (value) => {
         if (Array.isArray(value)) {
-          return !value.some((email) => !z.string().email().safeParse(email).success);
+          return !value.some((email) => !emailSchema.safeParse(email).success);
         }
         return true;
       },
diff --git a/packages/trpc/server/routers/viewer/teams/inviteMember/inviteMemberUtils.test.ts b/packages/trpc/server/routers/viewer/teams/inviteMember/inviteMemberUtils.test.ts
index 9133df42b6..e138fdb434 100644
--- a/packages/trpc/server/routers/viewer/teams/inviteMember/inviteMemberUtils.test.ts
+++ b/packages/trpc/server/routers/viewer/teams/inviteMember/inviteMemberUtils.test.ts
@@ -179,7 +179,9 @@ describe("Invite Member Utils", () => {
 
     it("should not throw an error if the email is valid", () => {
       const validEmail = "valid-email@example.com";
+      const validEmailWithApostrophe = "valid'email@example.com";
       expect(() => checkInputEmailIsValid(validEmail)).not.toThrow();
+      expect(() => checkInputEmailIsValid(validEmailWithApostrophe)).not.toThrow();
     });
   });
   describe("getOrgConnectionInfo", () => {
diff --git a/packages/trpc/server/routers/viewer/teams/resendInvitation.schema.ts b/packages/trpc/server/routers/viewer/teams/resendInvitation.schema.ts
index b494294630..a98ffd635a 100644
--- a/packages/trpc/server/routers/viewer/teams/resendInvitation.schema.ts
+++ b/packages/trpc/server/routers/viewer/teams/resendInvitation.schema.ts
@@ -1,8 +1,10 @@
 import { z } from "zod";
 
+import { emailSchema } from "@calcom/lib/emailSchema";
+
 export const ZResendInvitationInputSchema = z.object({
   teamId: z.number(),
-  email: z.string().email(),
+  email: emailSchema,
   language: z.string(),
   isOrg: z.boolean().default(false),
 });