---
title: "Product Update: April 2026"
description: "April was a big month with lot's of updates. Here's what shipped.Multi-currency billingAhaSend now bills in EUR, GBP, or USD depending on your location. Your currency is set when your account is verified, and all prices - plan base costs and per-1000 overage rates - are shown in your choosen currency throughout the dashboard and onboarding flow."
url: https://ahasend.com/blog/product-update-april-2026
markdown_url: https://ahasend.com/blog/product-update-april-2026.md
lang: en
type: blog_post
published: 2026-05-04
updated: 2026-08-28
author: "Mark Kraakman"
category: "Product Update"
image: https://cms.ahasend.com/sites/default/files/2026-05/product-update-april-2026.png
---

# Product Update: April 2026

_By Mark Kraakman, May 4, 2026, in Product Update_

![Product Update: April 2026](https://cms.ahasend.com/sites/default/files/2026-05/product-update-april-2026.png)

April was a big month with lot's of updates. Here's what shipped.

## Multi-currency billing

AhaSend now bills in EUR, GBP, or USD depending on your location. Your currency is set when your account is verified, and all prices - plan base costs and per-1000 overage rates - are shown in your choosen currency throughout the dashboard and onboarding flow. 

## Custom subdomains on domain creation

The [create-domain API endpoint](https://ahasend.com/docs/api-reference/domains/create-domain) now accepts `tracking_subdomain`, `return_path_subdomain`, `subscription_subdomain`, `media_subdomain`, and `dkim_rotation_interval_days` in a single API call.

Previously, custom subdomains had to be configured after domain creation as a separate step. Now you can provision a fully configured domain - including all custom subdomains - in one request. This is useful for anyone automating domain setup, whether you're onboarding a single domain or provisioning hundreds.

It also enables a cleaner migration path from SendGrid: because AhaSend now supports custom Return-Path and DKIM subdomains, you can reuse existing DNS records rather than creating new ones. No dangling records, no unnecessary DNS changes. We've [documented that migration approach in detail](https://ahasend.com/blog/how-migrate-multiple-domains-sendgrid-ahasend).

## Subdomain locking after DNS verification

Once a sending domain's subdomains are verified in DNS, they are now locked. Any change to a verified subdomain requires contacting support, and the API returns a clear `400` error indicating which subdomain is locked.

This protects against accidental misconfiguration after a domain is live - an important safeguard when managing DNS for many customer domains.

## BYODKIM compatibility for legacy setups

Platform Partner accounts can now create domains with 1024-bit BYODKIM keys for legacy compatibility. 2048-bit keys remain recommended for new setups, but this removes a blocker for partners migrating older SendGrid configurations where 1024-bit keys are in use.

## Work email required at signup

To reduce abuse, new accounts now require a work email address at registration. Free, personal, and temporary email providers are no longer accepted.

## Also shipped

A handful of improvements and fixes rounded out the month: better API error responses (`403` instead of `401` for scope issues, clearer errors across the board), email address normalisation on messages and suppressions and stricter message scheduling validation.

Full details in the [changelog](https://ahasend.com/docs/changelog).

[Learn more about AhaSend →](https://ahasend.com)