Custom domain email guides

By your domain’s provider

Not sure where your domain’s DNS is? Where you registered the domain, look at its DNS servers (nameservers): the zone is at their company. The domain checker shows the current MX and email records.

• Registro.br

  MX, SPF and DKIM at Registro.br, step by step.

• Hostinger

  MX, SPF and DKIM at Hostinger, step by step.

• GoDaddy

  MX, SPF and DKIM at GoDaddy, step by step.

• Cloudflare

  MX, SPF and DKIM at Cloudflare, step by step.

• Locaweb

  MX, SPF and DKIM at Locaweb, step by step.

• HostGator

  MX, SPF and DKIM at HostGator, step by step.

• KingHost

  MX, SPF and DKIM at KingHost, step by step.

• Namecheap

  MX, SPF and DKIM at Namecheap, step by step.

• Squarespace Domains

  MX, SPF and DKIM at Squarespace Domains (formerly Google Domains), step by step.

• Wix

  MX, SPF and DKIM at Wix, step by step.

By use case

• Free custom domain email in Gmail

  How to get hello@yourcompany.com in Gmail for free: what is really free, the DNS step by step, and what it costs to reply as the domain.

• Your Shopify store’s hello@ in Gmail

  How to get hello@yourstore.com from your Shopify store in Gmail: where the DNS records are in Shopify, its own forwarding, and when to use mxproxy.

• Your Nuvemshop store’s hello@ in Gmail

  How to get hello@yourstore.com from your Nuvemshop store in Gmail: where to create the DNS records, what not to touch and how to merge the store’s SPF.

Comparisons

• An ImprovMX alternative

  mxproxy and ImprovMX side by side: free plan, SMTP, limits and prices (checked in October 2026), and when each one makes more sense.

• A ForwardMX alternative

  mxproxy and ForwardMX side by side: free plan, prices (checked in October 2026), SMTP, logs and language, with what each one does better.

• Cloudflare Email Routing vs mxproxy

  Cloudflare Email Routing or mxproxy? What each requires (DNS at Cloudflare), SMTP sending, limits and costs, checked in October 2026.