Move off Postmark without stopping sending.
Export your contacts and your unsubscribes from Postmark, upload both, and Notix brings them over in the right order. No key, nothing to revoke afterwards. Your Postmark account keeps sending the whole time.
How the move goes
- Connect or upload. Paste a read-only key, or upload your contacts and unsubscribes as CSV. Nothing is written until you have seen what we found.
- Unsubscribes first. Every unsubscribe, bounce and complaint is written before the first contact, so nobody who opted out at your old provider can be emailed from Notix.
- Your lists and fields. Contacts land in lists you choose, with your custom fields mapped. Anyone suppressed arrives unsubscribed.
- Add Notix to your domain. Publish our records alongside your old provider's. Both keep sending; DNS has room for both.
- Move volume gradually. A four-week plan, 15% to 100%, so mailbox providers see a sender that grows steadily. Switch the old provider off at the end, not the start.
What you need from Postmark
Suppressions, exported per stream.
Nothing of yours is held afterwards: the uploaded files are kept for one hour while the import runs and dropped when it finishes.
Your SPF record keeps both
A domain may only have one SPF record, so you add Notix to the line you already have rather than replacing it. Keep include:spf.mtasv.net while Postmark is still sending, add include:_spf.usenotix.dev beside it, and remove Postmark's once you have switched off.
What it costs
What you would pay on Notix
We haven’t recorded a Postmark price at this volume, so we won’t guess at one. Their pricing page has it.
What does not come over
Send history, analytics and A/B test definitions stay at Postmark — your reporting starts fresh at Notix. Templates and webhook events are matched up where we can, and anything we cannot convert is named rather than quietly dropped. A migration is one direction, once: Notix does not keep the two accounts in step.
Start moving off Postmark.
The first campaign to imported contacts gets a quick review from us, so a mistake in the import cannot damage your sending.