Move from Klaviyo to Sendicorn

1. a.In Klaviyo, make a segment of the profiles that can receive email marketing, open it, then Manage segment, Export to CSV, with the properties you want.
2. b.Its consent columns aren't ones we read, so that file comes in subscribed. That's why the segment should hold only people who can get email.
3. c.Export Audience, Profiles, Suppressed profiles as a second file, add a column named Status with unsubscribed, and import it too, so the people who left stay blocked.

Source: Klaviyo's export guide, read 16 October 2026.

Open Contacts and press Import. Pick the newsletter, keep Status from file, and tick that the people on the list agreed to get email from you. Bought, rented or scraped lists aren't allowed.

The email, status, signup date and tags columns are read by name. Every other column becomes a field you can use in an email, like a first name, and you can skip any of them. This is how the Status column is read:

An import never subscribes anyone again: a contact who already left here stays as they are.

Before anything is written, the preview counts what comes in and what is left out, with the reason for each. The last four checks apply to new subscribers who would come in subscribed:

Open Domains in the panel and add the domain you send from. Copy the records it shows to your DNS host: three DKIM records, a MAIL FROM record and its SPF line, and, if the domain has none, the DMARC record it suggests.

The panel checks the records by itself for 72 hours, and Check again runs the check at once. Your old account keeps sending while you wait.

Choose a plan and pay at checkout; your account can send as soon as the payment goes through. Send yourself a test from the campaign page first.

A first send of 1,000 or more to a list this project never mailed goes to a random tenth first, then to the rest 15 minutes later if bounces and complaints stay low. If they run high, the project pauses and we email you what happened. That protects your domain while the list proves itself here.