Switch to Unitpost in about 4 minutes
Contacts, segments, templates, domains, suppressions, webhooks — everything moves over with one read-only API key. Preview it all first, zero risk, minimal effort.
- Resend
- SendGrid
- Mailgun
- Postmark
- Brevo
- Loops
How it works
Key in, preview, accept
A three-step assistant in Settings → Migration. It runs in the background — leave the page, come back, it's still there.
Paste a read-only key
Create a read-only API key on your current provider and paste it in. It's encrypted immediately, used once, then deleted.
Preview everything
We fetch your data and show exactly what carries over — counts, samples, conflicts, and anything we can't bring, called out explicitly.
Accept the import
Nothing is written until you accept. Pick what to include, resolve conflicts, and get a full report of every row that landed.
Supported providers
Coming from any of these?
The assistant speaks each provider's API natively and maps their concepts onto Unitpost 1:1.
- Resend
- SendGrid
- Mailgun
- Postmark
- Brevo
- Loops
Lossless by default
Everything carries over
Seven kinds of data, mapped field by field. Anything a provider can't export is flagged in the preview — never silently dropped.
Contacts & custom fields
Every contact with its email, name, subscription state, and custom fields — mapped 1:1, nothing flattened.
Segments & topics
Your audience structure arrives intact: lists and segments become segments, subscription groups become topics.
Templates
Email templates come across with their HTML and variables, ready to send from day one.
Domains
Sending domains are recreated with fresh DKIM keys and a guided DNS checklist — no downtime on your current provider.
Suppressions
Bounces, complaints, and unsubscribes carry over, so you never re-email someone who opted out. Your reputation stays clean.
Webhook endpoints
Endpoints and their event subscriptions are recreated with new signing secrets, ready to verify.
No risk
Safe on both sides
Migrating is read-only for your old provider and opt-in for your new workspace.
Read-only access
A read-only key is all we need. We only ever read from your provider — we can't send, change, or delete anything there.
Key encrypted, then deleted
Your key is KMS-encrypted at rest, used once to fetch the snapshot, and deleted the moment the fetch completes.
Nothing written until you accept
The preview is just a preview. Your workspace is untouched until you explicitly accept the import — and you can cancel any time.
Zero downtime
Your current provider keeps sending throughout. Migrate, verify DNS, flip your API key over whenever you're ready.
4 minutes, start to finish
Bring your email over today
Free plan, no credit card. Connect a read-only key, preview everything, accept — and send your next email from Unitpost.