LISTS AND IMPORTS
Bring your list. We map it, you send it.
Upload any spreadsheet and the importer matches every column to a field, reusing the ones you already have instead of making new copies. An interrupted upload picks up right where it stopped, so a dropped connection never means starting over.
Any spreadsheet, mapped for you
Fields reused, never duplicated
Custom fields as personalization

WHERE IMPORTS GO WRONG
The trouble with copy-pasting a spreadsheet
You export your list from wherever it's been living, open a new platform, and upload it. Somehow you end up with a First Name field and a first_name field, a Phone and a Phone Number, and nobody can say which one the welcome email should use.
Odd headers choke the importer. A column called 'Mobile #' doesn't match 'Phone', so it gets dropped, or duplicated into a brand new field nobody asked for. By the time you're done, your subscriber count doesn't match the row count in the spreadsheet, and you can't say why.
None of that tells you who's actually safe to send to. A list full of old jobs, typos and addresses nobody has touched in years is not a list you can trust with your next campaign.

HOW IT WORKS
From spreadsheet to sendable list
No IT department required. Here's what happens between your upload and your next campaign.
Upload your file
Bring over your spreadsheet, however messy. The importer reads every column as it finds it.
Map each column to a field
Match 'Mobile #' to Phone, 'First' to First Name. Already have that field? It's reused, not duplicated.
Keep going if it stops
Lost your connection halfway through five thousand rows? The upload resumes right where it left off.
Send knowing who's safe
Every address is checked before it can enter a campaign, so your list is ready the moment the import finishes.

IN DETAIL
What actually happens to your spreadsheet
Three things the importer takes care of so your list arrives clean, personal and protected.
MAPPED, NOT DUPLICATED
Every column lands in the right field, not a new one
The importer reads every column in your spreadsheet and matches it to a field: name, email, phone, birthday, whatever you track. If you already have a field called Phone, your import uses it instead of creating Phone (1) and Phone (2) across three uploads.
That matters the second time you import. Re-upload an updated list next month and the same fields fill in, instead of your subscriber list growing a new column every time you bring in fresh data.
Any spreadsheet, mapped for you
Fields reused, never duplicated
Works the same on your fifth import as your first

NO LOST PROGRESS
An interrupted upload picks up where it stopped
Big lists take a minute, and connections drop. If your upload stalls partway through, you don't start again from row one: it resumes exactly where it stopped.
Once it's in, every subscriber record keeps growing. Open the record for any contact and see their fields, the campaigns they've received, what they opened and clicked, and whether that open was a real person or a scanner.
Resumes automatically, no re-upload
Every record shows campaigns sent, opens and clicks
Opens marked human or automated, so you know who's real
PERSONAL AND PROTECTED
Your columns become personalization, your bounces stay blocked
Every custom field from your spreadsheet becomes a merge field in the email editor. That column of favorite drink orders or last appointment dates turns straight into a line in your next campaign: 'See you again soon, {{first_name}}.'
On the other side, an address that hard-bounces or complains is suppressed across the whole platform, not just one list. Nobody at Big Bold Marketing sends to it again, on any list, in any campaign.
Custom fields become merge fields automatically
Suppressed the moment it bounces or complains
Suppression applies platform-wide, not per list
WHAT IT MEANS FOR YOU
Your list arrives trustworthy, not just transferred
An import isn't just moving data. Done right, it tells you who's safe to send to and what to say to them.
Know your real number
Duplicate fields and botched headers used to mean your subscriber count never matched your file. Mapped imports fix that, one field per piece of data, every time.
What you see after an import is what you actually have, down to the row.
No more duplicate fields
Re-import your list next month and it fills in the fields you already have. Your subscriber list doesn't grow a new column every time you update it.
A bounce never comes back
A hard bounce or a complaint is suppressed across the whole platform. It stays blocked on every list, every campaign, for good.
Your columns, now personal
A column of birthdays or favorite orders becomes a merge field the moment it's imported, ready to drop into your next email.
A dropped connection costs nothing
An upload that stalls resumes exactly where it stopped. Five thousand rows in, you never start over.
One record, the whole relationship
Open any subscriber and see their fields, the campaigns they've received, and whether their opens were real people or automated scans.

COMPARED
What a mapped import looks like next to a typical one
A typical spreadsheet import
- Odd headers get dropped or duplicated into new fields.
- A dropped connection means starting the upload over.
- A bounced address can quietly end up back on a list.
- Merge tags are a separate setup job.
- The subscriber list is just contact details.
Big Bold Marketing
- Mapped to the field you already have. Any column, matched for you.
- Resumes where it stopped. No re-uploading thousands of rows.
- Suppressed platform-wide, the moment it hard-bounces or complains.
- Custom fields become merge fields automatically, ready in the editor.
- Every record shows the whole story: fields, campaigns, opens and clicks, human or automated.
QUESTIONS
Questions about importing your list

Can I bring my existing list?
Yes. Upload a spreadsheet, map the columns, and every address is checked before you send to it.
What if my spreadsheet has messy or unusual column names?
The importer maps whatever columns you have to fields, including ones you already use. You confirm the mapping before anything imports, so nothing lands in the wrong place.
Will importing create duplicate fields?
No. The importer reuses a field you already have instead of creating a new copy of it. Your subscriber record stays tidy, even after several imports.
What happens if my upload stops partway through?
It resumes exactly where it stopped. You don't need to start the upload again or guess which rows made it in.
Can I use my list data to personalize emails?
Yes. Any custom field from your spreadsheet becomes a merge field in the email editor, so a column like last visit date can appear right in your next campaign.
What happens to addresses that bounce or complain?
They're suppressed across the whole platform. Nobody sends to that address again, on any list or in any campaign.
Do I need to clean my list before I upload it?
No. Every address is checked before it can enter a campaign, so you don't need to scrub the file yourself first.
WORKS WITH
What your list feeds into next
An import is the start. Here's what it sets up.
Segments and follow-ups
Once your list is in, build segments from what people actually do: who clicked, who opened without clicking, who didn't open at all.
Resend to the people who missed it with a new subject line.
Every address checked
Each address is verified with its mail server, at the mailbox, before it ever enters a campaign.
See how every address gets checkedHonest reporting
Every open is classified as human or automated, reported in separate columns from the first message you send.
See reports you can believeOne simple credit pool
Address checks and AI writing draw from the same credit pool as sending, so there's one number to watch.
See how credits work
Your list, ready the moment it lands
Map it once, and every address is checked before your next campaign goes out.
See why Big Bold Marketing keeps your list safe to send to