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Send 1,000 letters
in 60 seconds.

Upload your letter and recipient list. We print, stamp, and mail via USPS.

Starting at $1.60 per letter. No minimums, no setup fees, no contracts.

$0 to upload · No account required · Cancel anytime

How it works

Three steps from spreadsheet to mailbox

Upload your recipient list. Our AI maps the columns. Click send. We handle the printing, stamping, and USPS delivery.

1

Upload your CSV

CSV, Excel, or Google Sheets export — up to 5,000 recipients per batch.

2

AI maps your columns

No template needed. Our AI detects names, addresses, and custom variables.

3

Click send

We print, stamp, address-verify, and mail via USPS the same business day.

recipients.csv3 of 1,247 rows
Full Name
Street Addr
City
St
Amount
Sarah Chen
742 Evergreen Terrace
Springfield
IL
$1,240.00
James Wilson
1600 Pennsylvania Ave
Washington
DC
$850.00
Maria Garcia
350 Fifth Avenue
New York
NY
$2,100.00
Full Name → NameStreet Addr → AddressCity → CitySt → StateAmount → Amount Due
AI mapped 5 of 5 columns automatically
Personalized letterReady
Sarah Chen
742 Evergreen Terrace
Springfield, IL

Dear Sarah Chen,

This letter is to inform you that your balance of $1,240.00 is now past due. Please remit payment at your earliest convenience.

Sincerely,
Accounts Department

+1,244 more letters generated

Pricing

Pay only for what you mail

Same flat rate from 1 letter to 5,000. No setup fees. No contracts. No surprises.

11,2502,5003,7505,000
100
letters
Per letter$1.60
Total$160.00

Save ~2.5 hours of work

DIY estimate: 2.5 hours of printing, folding, stuffing, addressing, and post-office trips.

Send 100 letters now

B&W Standard delivery shown. First Class available at $2.40/letter. Color upgrade available.

Trusted by teams

Built for people who’d rather be doing anything else

“The bulk mail feature with CSV upload is a game changer — what took a full afternoon now takes 10 minutes.”

Angel Li

Investment Associate

“I upload my spreadsheet and WriteToMail handles everything. Absolutely worth it.”

Aleem Virani

Software Engineer

“We switched from printing and mailing in-house. WriteToMail saves us 3 hours a week and the letters look more professional than what we used to send.”

Eric Epstein

CEO

USPS
Certified print network
5–7 days
First Class delivery
$1.60
Per letter, no minimum

Compare

Why teams pick WriteToMail

Feature
WriteToMail
DIY in office
Mail house
Send 1 letter or 5,000
AI column mapping
USPS address verification
No setup fee
No contract required
Same-day printing
Maybe
3–5 days
Time per 100 letters
~5 min
~3 hrs
1 week
Total cost per 100 letters (incl. labor)
$160
$215+
$250+
Address verification includedSame/next business day printingUSPS First Class & Standard

Frequently asked questions

Ready to send bulk mail?

Upload your letter (PDF or compose it here) and a recipient list (CSV or Excel). We’ll handle the rest. No contract, no setup, no minimums.