diff --git a/server/lib/resend.ts b/server/lib/resend.ts
deleted file mode 100644
index 0c21b1be..00000000
--- a/server/lib/resend.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-export enum AudienceIds {
-    SignUps = "",
-    Subscribed = "",
-    Churned = "",
-    Newsletter = ""
-}
-
-let resend;
-export default resend;
-
-export async function moveEmailToAudience(
-    email: string,
-    audienceId: AudienceIds
-) {
-    return;
-}
diff --git a/server/private/lib/resend.ts b/server/private/lib/resend.ts
deleted file mode 100644
index 42a11c15..00000000
--- a/server/private/lib/resend.ts
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * This file is part of a proprietary work.
- *
- * Copyright (c) 2025 Fossorial, Inc.
- * All rights reserved.
- *
- * This file is licensed under the Fossorial Commercial License.
- * You may not use this file except in compliance with the License.
- * Unauthorized use, copying, modification, or distribution is strictly prohibited.
- *
- * This file is not licensed under the AGPLv3.
- */
-
-import { Resend } from "resend";
-import privateConfig from "#private/lib/config";
-import logger from "@server/logger";
-
-export enum AudienceIds {
-    SignUps = "6c4e77b2-0851-4bd6-bac8-f51f91360f1a",
-    Subscribed = "870b43fd-387f-44de-8fc1-707335f30b20",
-    Churned = "f3ae92bd-2fdb-4d77-8746-2118afd62549",
-    Newsletter = "5500c431-191c-42f0-a5d4-8b6d445b4ea0"
-}
-
-const resend = new Resend(
-    privateConfig.getRawPrivateConfig().server.resend_api_key || "missing"
-);
-
-export default resend;
-
-export async function moveEmailToAudience(
-    email: string,
-    audienceId: AudienceIds
-) {
-    if (process.env.ENVIRONMENT !== "prod") {
-        logger.debug(
-            `Skipping moving email ${email} to audience ${audienceId} in non-prod environment`
-        );
-        return;
-    }
-    const { error, data } = await retryWithBackoff(async () => {
-        const { data, error } = await resend.contacts.create({
-            email,
-            unsubscribed: false,
-            audienceId
-        });
-        if (error) {
-            throw new Error(
-                `Error adding email ${email} to audience ${audienceId}: ${error}`
-            );
-        }
-        return { error, data };
-    });
-
-    if (error) {
-        logger.error(
-            `Error adding email ${email} to audience ${audienceId}: ${error}`
-        );
-        return;
-    }
-
-    if (data) {
-        logger.debug(
-            `Added email ${email} to audience ${audienceId} with contact ID ${data.id}`
-        );
-    }
-
-    const otherAudiences = Object.values(AudienceIds).filter(
-        (id) => id !== audienceId
-    );
-
-    for (const otherAudienceId of otherAudiences) {
-        const { error, data } = await retryWithBackoff(async () => {
-            const { data, error } = await resend.contacts.remove({
-                email,
-                audienceId: otherAudienceId
-            });
-            if (error) {
-                throw new Error(
-                    `Error removing email ${email} from audience ${otherAudienceId}: ${error}`
-                );
-            }
-            return { error, data };
-        });
-
-        if (error) {
-            logger.error(
-                `Error removing email ${email} from audience ${otherAudienceId}: ${error}`
-            );
-        }
-
-        if (data) {
-            logger.info(
-                `Removed email ${email} from audience ${otherAudienceId}`
-            );
-        }
-    }
-}
-
-type RetryOptions = {
-    retries?: number;
-    initialDelayMs?: number;
-    factor?: number;
-};
-
-export async function retryWithBackoff<T>(
-    fn: () => Promise<T>,
-    options: RetryOptions = {}
-): Promise<T> {
-    const { retries = 5, initialDelayMs = 500, factor = 2 } = options;
-
-    let attempt = 0;
-    let delay = initialDelayMs;
-
-    while (true) {
-        try {
-            return await fn();
-        } catch (err) {
-            attempt++;
-
-            if (attempt > retries) throw err;
-
-            await new Promise((resolve) => setTimeout(resolve, delay));
-            delay *= factor;
-        }
-    }
-}
diff --git a/server/private/routers/billing/hooks/handleSubscriptionCreated.ts b/server/private/routers/billing/hooks/handleSubscriptionCreated.ts
index 1152f223..a4014252 100644
--- a/server/private/routers/billing/hooks/handleSubscriptionCreated.ts
+++ b/server/private/routers/billing/hooks/handleSubscriptionCreated.ts
@@ -24,7 +24,6 @@ import { eq, and } from "drizzle-orm";
 import logger from "@server/logger";
 import stripe from "#private/lib/stripe";
 import { handleSubscriptionLifesycle } from "../subscriptionLifecycle";
-import { AudienceIds, moveEmailToAudience } from "#private/lib/resend";
 import { getSubType } from "./getSubType";
 import privateConfig from "#private/lib/config";
 import { getLicensePriceSet, LicenseId } from "@server/lib/billing/licenses";
@@ -172,7 +171,7 @@ export async function handleSubscriptionCreated(
                 const email = orgUserRes.user.email;
 
                 if (email) {
-                    moveEmailToAudience(email, AudienceIds.Subscribed);
+                    // TODO: update user in Sendy
                 }
             }
         } else if (type === "license") {
diff --git a/server/private/routers/billing/hooks/handleSubscriptionDeleted.ts b/server/private/routers/billing/hooks/handleSubscriptionDeleted.ts
index d92741be..a029fc5c 100644
--- a/server/private/routers/billing/hooks/handleSubscriptionDeleted.ts
+++ b/server/private/routers/billing/hooks/handleSubscriptionDeleted.ts
@@ -23,7 +23,6 @@ import {
 import { eq, and } from "drizzle-orm";
 import logger from "@server/logger";
 import { handleSubscriptionLifesycle } from "../subscriptionLifecycle";
-import { AudienceIds, moveEmailToAudience } from "#private/lib/resend";
 import { getSubType } from "./getSubType";
 import stripe from "#private/lib/stripe";
 import privateConfig from "#private/lib/config";
@@ -109,7 +108,7 @@ export async function handleSubscriptionDeleted(
                 const email = orgUserRes.user.email;
 
                 if (email) {
-                    moveEmailToAudience(email, AudienceIds.Churned);
+                    // TODO: update user in Sendy
                 }
             }
         } else if (type === "license") {
diff --git a/server/routers/auth/signup.ts b/server/routers/auth/signup.ts
index 93403a50..af3c670d 100644
--- a/server/routers/auth/signup.ts
+++ b/server/routers/auth/signup.ts
@@ -22,7 +22,6 @@ import { checkValidInvite } from "@server/auth/checkValidInvite";
 import { passwordSchema } from "@server/auth/passwordSchema";
 import { UserType } from "@server/types/UserTypes";
 import { build } from "@server/build";
-import resend, { AudienceIds, moveEmailToAudience } from "#dynamic/lib/resend";
 
 export const signupBodySchema = z.object({
     email: z.email().toLowerCase(),
@@ -213,7 +212,7 @@ export async function signup(
             logger.debug(
                 `User ${email} opted in to marketing emails during signup.`
             );
-            moveEmailToAudience(email, AudienceIds.SignUps);
+            // TODO: update user in Sendy
         }
 
         if (config.getRawConfig().flags?.require_email_verification) {