Mass Send with CSV

Groups & Lists

Drop one PDF (or any file) and one recipients.csv into your DropToSend\sendbox. We’ll fan it out into many email drafts, throttled to protect your reputation.

C:\DropToSend\sendbox

1) Create recipients.csv

Use a plain CSV with headers email, subject, body. Example:

email,subject,body
alice@example.com,Weekly Report,Hi Alice—see attached.
bob@example.com,Weekly Report,Hi Bob—see attached.
carol@example.com,Weekly Report,Hi Carol—see attached.

Excel/Google Sheets can export CSV directly. Just ensure the file is named recipients.csv.

2) Drop it alongside your file

Save your PDF (or other file) and the recipients.csv into C:\DropToSend\sendbox. DropToSend pairs them automatically. 

report.pdf
recipients.csv
Sendbox with PDF and recipients.csv
A file + a CSV = many email drafts.

3) Let DropToSend pace the sends

Each row becomes one draft (or one send, if you’ve set auto-send). Our throttling engine spaces them out so you don’t hit provider rate limits.

  • Default: ~1 email every few seconds
  • Customizable in Settings ? Throttling
  • Safe for Outlook and Gmail alike
Tip: You can keep working while DropToSend quietly creates drafts in the background.

FAQ

Can I send different attachments to each recipient?
Not yet—every recipient gets the same file(s). Future versions may support per-row attachments.
Do I need headers in the CSV?
Yes. The first line must include email,subject,body in that order.
How many rows can I send?
Hundreds are fine. For very large campaigns, we recommend splitting into smaller CSVs to stay safe.
Does DropToSend actually send the emails?
By default we create drafts in Outlook or Gmail. You review and send. Auto-send mode is optional in Settings.
Need help? Contact support and mention “Mass Send CSV”.