How to Export Squarespace Subscribers and Contacts to an Email List

To get a clean email list out of Squarespace, export the mailing list and import only the subscribed file. In Squarespace, open Lists & Segments, click the ... menu next to the list and choose Export. The download is a .zip of three CSVs: subscribed, unsubscribed and cleaned. The subscribed file is your audience; the other two belong in your next tool's suppression list. Merge repeats and check the addresses before the import.

The free Squarespace contacts to email list tool merges and sorts the files in your browser. Here is each step.

Step 1: pick the right export

Squarespace has several exports, and they don't carry the same information. From its help on building mailing lists, the Contacts panel and managing customers (all read 2 November 2026):

Export	Click path	Consent shown by
Mailing list	Lists & Segments > ... on the list > Export	Which of the three files a contact is in
All contacts	Contacts panel > ... at top right > Export all contacts > Confirm	Not documented; check your file
Customers	Lists & Segments > Customers > export icon > Confirm	Nothing: no consent column in the documented fields

For a newsletter or a move to another email platform, the mailing list export is the one to use. The customer export is useful for order history and spend, but Squarespace's documented fields (name, email, total orders, total spent, dates, last used addresses, tags) include no consent column. The help also says "Notes and saved addresses aren't in the .csv export", and that the Form Submitters segment can't be exported at all.

Headers aren't documented for the contact and mailing list files. Check your own file before filtering.

Step 2: export the mailing list

1. In Squarespace, open Marketing > Email Campaigns > Lists & Segments.
2. Click the ... menu next to the list or segment.
3. Choose Export and save the .zip.
4. Unzip it. You get three CSV files: subscribed, unsubscribed and cleaned.

Step 3: put each file in the right place

File	What it holds	In the next tool
Subscribed	People you can mail	Import as subscribed
Unsubscribed	People who opted out	Import as unsubscribed or suppressed, never as audience
Cleaned	Addresses that bounced on a past campaign	Import as suppressed, or they bounce again on your new sender

The three files have the same columns, so once they're mixed you can't tell them apart. Keep them separate. If you have opt-outs from other tools too, combine them with the suppression list merger.

Step 4: when you have a contacts export instead

Squarespace's help says that if a contact's information "displays an Accepts Marketing label, it means you can contact that user via an email campaign." Customers who checked out without ticking the newsletter box don't have it. If your contacts file carries that as a column, keep the rows marked yes, set aside the no's, and treat blanks as no consent. The Squarespace tool reads it by name and tells you which column it used.

Consent rules depend on where your contacts are. The FTC's CAN-SPAM guide covers US commercial email; UK, EU and Canadian rules expect an opt-in for most marketing.

Step 5: check the addresses

Squarespace cleans an address only after a campaign to it bounced. Subscribers who were never mailed, or haven't been mailed in a year, are unchecked: sign-up typos, throwaway addresses and inboxes that have since closed.

1. Download the merged subscribed list.
2. Upload it on the verify page. Every address gets a live mailbox check, and valid, risky and invalid download as separate files.
3. Import the valid file into your new platform; add the invalid file to the suppression list with the cleaned file.

Risky means unconfirmed, not bad: catch-all business domains and Microsoft's consumer domains (outlook.com, hotmail.com, live.com) often can't be confirmed either way. If this is a platform move, our post on verifying a list before switching ESP covers the import and first sends.

Where SimpleVerifier fits

Sorting and merging are free and run in your browser; nothing is uploaded. For the mailbox check, upload the list on the verify page; the first 100 checks are free with a Google sign-in. Starter is $9 a month for 2,500 checks; Pro is $39 a month with the first 100,000 checks a month at full speed, then slower, never cut off. See pricing.