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# A Simpler, More Secure Newsletter Sending Setup
- URL: https://www.magicpages.co/roadmap/a-simpler-more-secure-newsletter-sending-setup/
- Published: 2026-07-09T19:36:40.000Z
- Updated: 2026-07-09T19:36:40.000Z
- Description: Custom sending domains are now all-CNAME, with auto-rotating 2048-bit DKIM and a simlpe upgrade.
- Author: Jannis Fedoruk-Betschki
- Tags: Roadmap & Changelog

Setting up a custom sending domain for your newsletter on Magic Pages just got simpler and more secure.

## What changed

**It's all CNAME records now.** Previously, sending from your own domain meant copying an SPF TXT record, a DKIM TXT record, and sometimes MX records into your DNS. The new setup is a small set of CNAME records instead:

- One CNAME at your sending subdomain that publishes SPF for you – no TXT record to maintain.
- Two DKIM CNAMEs with 2048-bit keys that **rotate automatically**, so your signing keys stay fresh without you ever touching them.
- An optional tracking CNAME for open and click analytics.

No SPF TXT, no DKIM TXT blob, and no MX records on your side.

The old setup used a single static 1024-bit key. The new one uses Mailgun's Automatic Sender Security: stronger 2048-bit keys that rotate on their own. That's a real deliverability and security improvement, handled entirely behind the scenes.

## Do I need to do anything?

If you're happy with your current setup, no – existing custom sending domains keep working exactly as they are. The upgrade is entirely opt-in.

If you'd like the new, simpler setup, open your customer portal, go to the **Newsletter** tab, and look for the **"Upgrade email security"** banner. There's a full walkthrough in [Upgrading Your Newsletter Sending Domain to the New Setup](https://www.magicpages.co/upgrading-your-newsletter-sending-domain-to-the-new-setup/).