Move your sending without losing reputation, history or sleep. Run both providers in parallel, then cut over in stages.
An AI copilot maps Postmark servers, streams and templates for you to approve
List your domains, keys, templates, webhooks and suppressions.
Add MigoSMTP DNS records alongside the old ones.
Recreate templates and webhooks, import suppressions.
Shift traffic in stages and watch delivery.
Remove old records and keys once stable.
Terminology reflects the provider's documentation at the time of writing. Verify against current docs before publishing.
curl https://api.postmarkapp.com/email \
-H "X-Postmark-Server-Token: POSTMARK_TOKEN" \
-H "Content-Type: application/json" \
-d '{ "From": "hello@yourdomain.com",
"To": "user@example.com",
"Subject": "Hello",
"HtmlBody": "<p>Hi there</p>" }'curl https://api.migosmtp.com/v1/send \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"from": "hello@yourdomain.com",
"to": "user@example.com",
"subject": "Hello",
"html": "<p>Hi there</p>"
}'Illustrative requests. See the API reference for the complete field list.
Postmark's transactional and broadcast streams exist for a reason. Recreate that split in MigoSMTP so receipts and marketing mail have separate reputation, reporting and suppression handling from day one.
Each Postmark server usually represents an application or environment. Move one at a time, creating a workspace and key for each, so any issue is limited to a single app.
List templates, layouts and the model fields your code sends. Recreate them in MigoSMTP, then send test messages with real data to confirm every variable renders correctly.
Replace Postmark server tokens with MigoSMTP keys in configuration, one service at a time. Keep old tokens active until logs show no calls, then revoke them.
Reads exported servers and message streams and proposes workspace and stream layouts with confidence scores. You see every proposed change and approve it before anything is created.
Converts Postmark templates and layouts, keeping model variables intact, and shows a rendered preview with your sample data. Each template waits for your approval before it is saved.
Compares bounce, deferral and complaint rates against your Postmark baseline while traffic moves. It alerts you to drift, and you choose whether to hold or continue each stage.
Answers questions such as which stream to move first and what to test, using your exported configuration. Its recommendations are suggestions that you confirm before acting.
AI suggestions for your Postmark migration are reviewed and approved by you before anything is applied. [Confirm which AI features are available at launch.]
Record which applications use which server token and stream. Hidden integrations such as support tools or billing systems are the most common thing teams forget.
Suppressions can differ between transactional and broadcast streams. Export each separately and import them into the matching MigoSMTP stream before sending.
Send test messages with complete, partial and empty data. Compare the rendered output with Postmark's version to catch missing fields or changed whitespace.
Add MigoSMTP DKIM and return-path records without deleting the Postmark ones. Verify both pass in a header check before changing any production sending.
Transactional mail is the most sensitive, but broadcast mail has higher volume. Move transactional first, then ramp broadcast gradually while watching complaint rates.
List your servers, streams, templates and webhooks, authenticate domains with MigoSMTP beside Postmark, recreate templates, import suppressions, and move one stream at a time. Retire Postmark tokens and DNS records after volume is stable and logs show no remaining use.
A single server with a few templates can move in days. Several servers, streams and webhook consumers take longer because each needs testing. Plan [n] weeks and migrate one stream at a time. Test on a small share of traffic first and review the results with your team.
You recreate them in MigoSMTP. Export template HTML and the model variables your code sends, then use the converter to draft versions for review. Check layouts and conditional sections with test sends before approving. Test on a small share of traffic first and review the results with your team.
MigoSMTP uses workspaces and streams to keep transactional and broadcast mail separate, so the structure maps closely. Reputation, reporting and suppressions stay separate per stream. Confirm exact behaviour with [Confirm stream-level suppression behaviour]. Test on a small share of traffic first and review the results with your team.
Reputation belongs to your domain and sending IPs, so it does not carry over automatically. Authenticate the domain, send a small share first, and increase gradually. Dedicated IPs need a warm-up before full volume. Test on a small share of traffic first and review the results with your team.
Export them and import them into MigoSMTP before your first send, so recipients who bounced or complained are not mailed again. If you use separate streams, export and import per stream. Check formats against [verify against provider docs]. Test on a small share of traffic first and review the results with your team.
Yes. Both can authenticate the same domain, so route a small percentage through MigoSMTP while Postmark handles the rest. Splitting by server or stream makes it easy to compare results and roll back. Keep Postmark tokens active until logs show no remaining calls.
Yes, for the mapping work. The assistant reads exported servers, streams and templates, proposes MigoSMTP equivalents with confidence scores, and flags items needing manual care. A person approves every change before it is applied. [Confirm which AI features are available at launch.]
Yes. Most teams send a small share through MigoSMTP first and increase gradually.
Moving from a shared pool to a dedicated IP needs warmup. Use the guide or the calculator.
Our team can review your plan for Postmark and the cutover schedule.
Create an account, add your domain and send your first email.