All features/Platform/Custom Sending Domains
Platform

Custom Sending Domains.

Campaign domains with Cloudflare push.

Resend-verified domains for newsletters and blasts — step-by-step setup, Cloudflare auto-push for SPF/DKIM/DMARC, and a clear split from 1:1 hosted mailboxes.

SOC 2
Type II ready
BYO
AI keys per org
99.9%
Uptime target
Workspace settings
AI provider
Claude: BYO key
SSO
SAML: Okta
Audit log
30 days retained
Data region
us-east-1
Overview

Everything custom sending domains does, in one place.

Hosted mailboxes are perfect for 1:1 sales and sequences. Campaign domains are for high-volume ESP sends as hello@yourcompany.com — with separate deliverability tuning.

The redesigned setup wizard walks you through add domain, publish DNS (manually or via Cloudflare), and verify with Resend. Connect the same Cloudflare token as hosted mail and push Resend records plus DMARC in one click.

Capabilities

Every capability in Custom Sending Domains.

01

3-step setup guide with progress tracking

02

Cloudflare push for Resend DNS + DMARC

03

Resend domain verification

04

Per-campaign and sequence From domain

05

Isolated bulk reputation from hosted mail

How it works

Set up once. Use it every day.

1

Set up your org

Create an organization, invite your team and connect your domains and social accounts once.

2

Configure safely

Bring your own AI keys, set rate limits, rotate credentials and lock down sensitive exports.

3

Scale securely

Multi-tenant isolation, audit logs and SSO keep you compliant as your footprint grows.

Who it's for

Built for marketing teams of every size.

Security-conscious teams

Least-privilege service keys, audit trails and SSO, ready for a security review.

Multi-brand companies

Separate orgs per brand with isolated data, billing and AI usage.

Enterprises

Dedicated environments, custom DPAs and a named CSM on Enterprise plans.

FAQ

Questions, answered.

How is data isolated between organizations?+

Every record is scoped by org_id and enforced in application code with least-privilege service keys.

What AI providers can I plug in?+

Claude (Anthropic) and Grok (xAI) ship out of the box. OpenAI and Perplexity are supported for research.

Can we self-host?+

Managed cloud today. A single-tenant deployment option is available on Enterprise.

What certifications are in place?+

SOC 2 Type II readiness, GDPR and CCPA support. DPAs are available on request.

Ready to ship

Put Custom Sending Domains to work today.

Free to try. No credit card needed. Set up in under five minutes.