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Start here · Updated Oct 8, 2026

Switching from another tool

In short

Bring your opt-outs first, then your lists, mailboxes and emails. Mailboxes that were already sending well can skip the slow start of warm-up.

Move over in 7 steps

  1. Step 1: In your old tool, export your contact lists, and the addresses that unsubscribed, bounced or asked not to be contacted. Most tools export them as CSV files.
  2. Step 2: Import the opt-outs first: on Suppressions, click Import and paste the addresses (or the first column of the CSV). Nobody who opted out will be emailed again. See Suppressions.
  3. Step 3: Import your lists on Contacts and give each column a type; every column you keep becomes a variable. See Import a list.
  4. Step 4: Connect your mailboxes on Senders. For a mailbox that has been sending well, tick It's already warmed up so warm-up skips its slow start. See Connect a mailbox.
  5. Step 5: Recreate your emails as templates, or straight in a campaign's Editor. A designed email can be pasted into the HTML code view as it is. See Write your emails.
  6. Step 6: Verify your lists, even if your old tool did: SendPath only emails addresses it has checked. See Verify your lists.
  7. Step 7: Launch at a low daily limit and raise it over a week or two, so mailboxes and lists settle in. See Sending rules.

Good to know

  • Your DNS records stay as they are: the same mailboxes send through the same providers.
  • Pause or end your campaigns in the old tool before launching here, so nobody gets the same email twice from two tools.
  • Variables are written {{first_name}}. If your old tool wrote them differently, change them in the editor; the editor warns about any variable the list doesn't have.
  • Turn on warm-up for every mailbox, even warm ones: it keeps watching where their mail lands, and campaigns follow it. See How placement affects your campaigns.

If something's wrong

An import says some addresses are invalid.
Those rows aren't email addresses (a blank cell, a name in the email column). They're skipped; the rest import.
A campaign won't start after moving.
Usually the list isn't verified yet, or there's no test email. The Launch panel lists what's left. See The pre-send gate.

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