Cold email from your own mailboxes, sent the way a person would send it
Upload your leads, write a short sequence and press launch. DataTaper Mailer sends through your Google Workspace, Microsoft 365 or any SMTP mailbox during each lead's working hours, and stops following up the moment someone replies.
What it does
The parts of outreach that eat an afternoon when you do them by hand.
Your mailboxes, your reputation
Connect any mailbox that has SMTP. New leads are shared out across your mailboxes, and each one waits a few minutes between emails, so nothing looks like a blast.
Lands in their working day
We read the location in your file and work out each lead's timezone. Emails go out inside the hours you pick, in the lead's own local time, whether they're in Pune or Portland.
Follow-ups that know when to stop
Add up to four follow-ups in the same thread. We watch your inbox for replies and bounces, so nobody gets a nudge after they've already answered.
How it works
From a spreadsheet to a running campaign in about ten minutes.
Connect a mailbox
Pick your provider, paste the login and press Test. We check it can send before you rely on it.
Upload your leads
Drop in a CSV or Excel file. Every column becomes a variable, like {{first_name}} or {{company}}.
Write the sequence
A first email and a few follow-ups, with a live preview filled in for real people from your list.
Launch
Start now or schedule it for Monday morning. Pause whenever you like and watch the replies come in.
Looks after your domain
Sending cold email is only worth it while your emails keep reaching the inbox.
A list of people to never email
Bounces, unsubscribes and anyone you add by hand are skipped in every campaign you run, now and later.
Unsubscribe that just works
Each email carries an unsubscribe link and the one-click header Gmail and Yahoo now expect from anyone sending in volume.
Domain checks in plain words
We look up SPF, DKIM, DMARC and MX for your sending domains and tell you what to fix if something's missing.
Send your first campaign today
The Free plan is yours to keep: 1 mailbox and 50 emails a day. Upgrade when you need more room.
Start free