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How to move your email list to a new tool without losing the consent

13 min readUpdated 25 October 2026

Moving a list is not copying a column of addresses. The thing that has to survive the trip is the record of who said yes, when, and through which door, because a set of addresses without that history is a liability you have imported along with the names.

How do I move my email list to a new tool?#

  1. Export everything from the old tool, including the status column, and keep the file somewhere you will still have it next month.
  2. Read your own header row out loud and decide which of those columns the new importer will understand. The address column is the easy part.
  3. Import into the new tool without sending anything, and let it map the statuses so an unsubscribed name arrives as unsubscribed.
  4. Check the counts against the export before you mail a single person: total, active, unsubscribed, pending.
  5. Warm the new sending setup with the engaged part of the list first, then bring the rest across.
  6. Leave the old account running until one full send has gone from the new one without a surprise.

The step people skip is the fourth. A migration that quietly turned 300 unsubscribes into 300 mailable contacts looks fine on the dashboard until the first campaign, and then it looks like a complaint rate.

Can you transfer contacts from one email account to another?#

That question means two different things depending on which kind of contacts you hold, and the answers are worth separating.

A personal address book in Gmail or Outlook moves as a file: export it from one account, import it into the other, and the entries land with their names and numbers. The mail provider's own help page has the current menu names, which change more often than the format does.

A marketing list is a different object. It is not a set of names you can paste into another account, because it carries a subscription status, a history of who confirmed, and in most jurisdictions a legal basis for mailing. Moving that means an export, an import that honours the status column, and a new home for the consent evidence.

What should I export from the old tool?#

What you takeWhy it matters on the way inWhere it goes missing
The addressesThe obvious one, and the only column some senders exportNowhere, this part is easy
The status columnSubscribed, unsubscribed and pending have to arrive as themselvesA tool that exports only the active audience
Signup dateThe age of a relationship, and the only honest way to build a quiet segmentDropped by exports that flatten custom fields
Tags, labels or segmentsWhat the reader asked for, which is the reason they joinedStored as a separate object that the CSV will not carry
Consent evidenceWho said yes, when, from what source, and through which formAlmost everywhere, because most tools do not export it
Custom fieldsThe two or three that your emails mergeSilently truncated to the standard columns
The automationsNobody imports a sequence, so the text has to be copied by handThe thing that makes people postpone the move
The suppression listThe bounced and complained addresses that must stay unmailedTreated as an internal detail rather than part of the list

Which columns does a new importer need?#

One that works: the address, the status, the signup date, the tags, and the first name. Anything else is a custom field you can add afterwards, and a migration is the wrong week to discover what your new tool does with unusual column names.

A good importer is generous about header names rather than demanding a template. The practical test is to look at whether it recognises what your old tool called them: Email Address or email, FNAME or First Name, Tags or Labels or Segments, Status or Member Status or Subscription Status, Signup Date or optin_date. A tool that makes you rename columns by hand will get them wrong.

The other test is what it does with a row it cannot read. A per-row warning that names the bad line lets you fix ten addresses. A file rejected wholesale means the migration becomes an afternoon, and afternoons are where senders give up and import the cheap way.

Do unsubscribed addresses have to come with me?#

They have to arrive as unsubscribed, which is the same thing said more precisely. The people who opted out are the reason you can prove an opt-out works, and a new tool that cannot represent them is a tool that will mail them.

A record that is impossible to import is a real risk. Some senders export only the active audience because the CSV is tidier, and then the unsubscribed names are gone from the system of record entirely. Next year somebody re-enters those addresses from an old spreadsheet and the complaint arrives with a date stamp.

Can I import a list without asking people to confirm again?#

You can, provided the new tool honours the status you imported rather than treating every row as a fresh signup. The distinction that matters is between a list that already confirmed, which is the same relationship in a new building, and a list of addresses typed into a form by nobody in particular, which is not a relationship at all.

A cautious setup treats imported addresses as unconfirmed and gives them a one-time email asking whether they want to stay, with silence meaning they stop being mailed. That costs you part of the list and buys you a record for everybody left. It is the right trade when the file came from an old spreadsheet, and the wrong one when every name joined through a double opt-in form last month. What double opt-in is is the background.

What happens to my tags and segments?#

Tags usually travel as a column of comma-separated values. Segments usually do not, because a segment is a rule rather than a fact about a person, and rules have to be rebuilt in the new tool's language.

That is a small piece of good news. Segmenting an email list is writing the questions down, and a migration forces you to look at the six rules you use rather than the nineteen you accumulated.

What happens to my automations?#

Nothing, because nobody imports a sequence. Copy the subject and the body of each step into a document, note the delay in hours next to it, and rebuild them by hand in the new place.

Rebuilding is the moment to shorten the series rather than transplant it, since an automation that has been running for two years accumulates steps nobody wrote on purpose. What an autoresponder is covers what to look for when you check the old ones.

What usually breaks in a list migration?#

The failureHow you see itThe check that catches it
Unsubscribes imported as subscribersA complaint on the first campaignCompare the exported status counts with the new tool's
Tags dropped or truncatedA segment that now matches nobodyPick three tagged names and look them up by hand
Names merged into one audienceTwo brands mailing one listCount the audience before and after against the file
Consent history left behindNo answer when a provider asks how they joinedDownload the proof you have before the old account closes
Suppressed addresses re-enteredBounces climbing from the first sendSend to a small slice and read the bounce report
Automation copied badlyA welcome that fires on an imported nameTurn the sequence off before the import, then on after

How do I check the import worked?#

Four numbers and three names. The numbers are the total, the active count, the unsubscribed count and the pending count, each read from the exported file and then from the new tool. They should agree, and a difference is a mapping problem you want found today rather than in a complaint next week.

The names are one unsubscribed address, one address carrying two tags, and one with a signup date older than a year. Look all three up and see whether what you can see about them matches what the file said. That is a five-minute test and it catches most of the table above.

Should I move the whole list or only the readers?#

Move everything you can prove, then decide who to mail. A list where the quiet half is deleted rather than segmented loses the only honest measure you have of your reach, and a list where the quiet half is mailed anyway costs you the ratio that protects the engaged part. How to clean an email list is the same decision made with the file already in front of you.

The pattern that works is an import of all of it, a re-permission email to the names that have been silent for a year, and a first month of sending that is deliberately smaller than you are capable of.

How long should both tools run at once?#

Long enough for one full send from the new place, read on a phone, with the report checked. In practice that is one to three weeks, and the point of the overlap is not the second tool, it is the file: an old account that is still open is a backup.

Send from one of them, never both. Two tools mailing the same address on the same week is the fastest way to make a loyal reader unsubscribe, and it happens more often than anyone admits because an old campaign still sitting in a queue counts as a plan.

Do I have to close the old account?#

No, and closing it is the least urgent part of the job. Keep the export, keep the account until the new sending is proven, then close it on your own schedule rather than the renewal date's. Some tools bill stored contacts, in which case a duplicated list is a real cost and the deadline becomes a date on a calendar.

Before anything closes, download the record of how people joined. After the account goes, that evidence is a support ticket at a company that has no obligation to answer it. What email marketing costs covers which tools charge for stored names and therefore make the overlap expensive.

The obligation travels with the addresses, not with the software. Whoever holds a list has to be able to say how a person joined, honour an unsubscribe in both systems during the overlap, and stop mailing anyone with no basis. The specifics depend on where you and your readers are, and a page written by a newsletter tool is not legal advice.

What a tool can do is make the record: keep the source and the time of each confirmation, refuse to mail an address that has no proof behind it, and give the whole thing back to you as a file when you ask. That file is what makes the next migration easier than this one.

How do I move a list out of Campaign Kicker?#

The consent record downloads as a CSV from the contacts screen whenever you want it, with the action, the source, the time and the address it belongs to. There is no self-serve button to export the contact rows yet, so that one comes from us: write to hello@campaignkicker.com and we will send the list.

On the way in, our importer reads the shape a Mailchimp audience export produces, including the alternatives it meets in the wild (email or Email Address, FNAME or First Name, Tags or Labels or Segments, Status or Subscription Status, Signup Date or optin_date), carries the status column so unsubscribed stays unsubscribed, holds anything unconfirmed out of every send until it clicks the one-time confirm email, and skips a row it cannot read with a warning rather than failing the file. Nothing imports at all until you tick the declaration saying how those addresses were collected.

Bring the list across with the status intact. Campaign Kicker reads a Mailchimp-shaped CSV, keeps unconfirmed addresses out of every send until they say yes again, requires a consent declaration before anything imports, and lets you download the consent record any time. The free plan mails 5,000 emails a month with no cap on stored names and no card.

Import the list

Common questions

How do I move my email list to a new tool?
Export everything including the status column, import it into the new tool without sending anything, check the four counts against the file, warm the new setup on the engaged half first, and keep the old account open until one send has gone cleanly. Automations and segments get rebuilt by hand.
Can you transfer contacts from one email account to another?
A personal address book moves as a file between Gmail or Outlook accounts. A marketing list carries subscription status and consent history, so it needs an export, an importer that honours the status column, and a new home for the proof that people asked to be there.
Do I need to ask subscribers to confirm again after a move?
Not if the new tool imports their status instead of treating every row as a fresh signup. Re-confirm when the file came from an old spreadsheet or an import nobody checked. A one-time email that treats silence as leaving costs you names and buys you a record.
What should I export before cancelling an email tool?
The addresses, the status column, the signup date, the tags, the custom fields your emails merge, and the consent record showing how each address joined. Also copy the subject, body and delay of every automation, because sequences do not import.
What breaks most often in an email list migration?
Unsubscribes arriving as mailable contacts, tags silently dropped so segments match nobody, two audiences merged into one, the consent history left behind in a account that then closes, and an automation firing at an imported name. All six are caught by checking counts and three sample names.
Will my tags and segments survive the move?
Tags usually travel as a comma-separated column. Segments are rules rather than facts, so they get rebuilt in the new tool. Most senders find they were keeping nineteen rules and using six.
Can I import a CSV of email addresses I already have?
Only what you may lawfully mail. An imported address should arrive with its status and its proof, and a sensible tool holds anything unconfirmed out of every send until it says yes. A column of addresses with no history is not a list, it is a risk with a row count.
How do I verify an import worked?
Compare the total, active, unsubscribed and pending counts against the exported file, then look up three specific rows by hand: one unsubscribed, one with two tags, one with an old signup date. Five minutes, and it catches nearly every mapping failure.
Should I move the whole list or only the active readers?
Import everything you can prove, then decide who to mail. Deleting the quiet half destroys your measure of reach, and mailing it damages the ratio that protects the readers you have. Give the silent names one re-permission email instead.
How long should I keep both email tools open?
Until one full campaign has gone from the new tool, been read on a phone and checked in the report, which is usually one to three weeks. Mail from one of them only, and close the old account after downloading the consent record.
Is moving a subscriber list legal?
The obligation travels with the addresses rather than the software: you still have to say how somebody joined, honour opt-outs in both systems during the overlap, and stop mailing anyone with no basis. Where you and your readers are decides the detail, and no tool page is legal advice.
What does a migration cost?
Nothing in fees unless a tool bills stored contacts and you leave two copies running, which turns the overlap into a real invoice. The cost that matters is the send you lose while the new domain and IP warm up, which is why the engaged half goes first.
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