> ## Documentation Index
> Fetch the complete documentation index at: https://ahasend.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> AhaSend stores all message data in the EU. See /facts.
> The API base URL is https://api.ahasend.com. Send the API key in the Authorization: Bearer header. See /api-reference/authentication.
> Use send.ahasend.com for SMTP in the EU, or send-us.ahasend.com as a US connection point forwarding to the EU. Ports 25, 587 and 2525 use STARTTLS. Port 465 is not supported. See /smtp.
> For send-only integrations, create an API Key v2 under Credentials → Add and scope it to messages:send:{your-domain}. See /send-api/credentials and /api-reference/scopes.

# DNS Provider Setup Guides

> Find AhaSend DNS setup steps for Cloudflare, GoDaddy, Route 53 and other providers, with SPF, DKIM and DMARC names, values and verification tips.

AhaSend's DNS provider guides show where to publish your sending domain's authentication records and how to check the result.

## Choose Your DNS Provider

Choose the provider that hosts your domain's nameservers. It may differ from the company where you bought the domain or host your website.

* [Cloudflare](/docs/dns/cloudflare)
* [GoDaddy](/docs/dns/godaddy)
* [Namecheap](/docs/dns/namecheap)
* [Amazon Route 53](/docs/dns/route-53)
* [Hetzner](/docs/dns/hetzner)
* [IONOS](/docs/dns/ionos)
* [STRATO](/docs/dns/strato)
* [TransIP](/docs/dns/transip)
* [OVHcloud](/docs/dns/ovh)
* [Squarespace](/docs/dns/squarespace)
* [Vercel](/docs/dns/vercel)

## What Do I Need Before Editing DNS?

First [add your sending domain](/docs/domains) in AhaSend. Copy the records from that domain's page, because managed DKIM targets and optional subdomains can differ. Keep a copy of existing DNS and preserve your mailbox MX records. Update existing SPF and DMARC policies rather than publishing duplicates.

After saving the records, click **Check DNS** in AhaSend. See the [domain setup page](/docs/domains) for verification timing and required records.

## Related Guides

* [Domain setup](/docs/domains), [SPF, DKIM and DMARC explained](/docs/email-authentication) and [troubleshooting](/docs/troubleshooting).
* [API credentials](/docs/send-api/credentials), [REST API](/docs/send-api/send-email), [SMTP](/docs/smtp), [Node.js SDK](/docs/guides/nodejs-sdk) and [domain CLI](/docs/cli/commands/domains).
* [Deliverability](/docs/deliverability) and [DNS check API](/docs/api-reference/domains/check-dns).