Anyone send.few cankeep sending.
Your domain's reputation is the one thing in outreach you can't buy back. RepMail checks every email before it goes out, tracks what happens after, and pauses on its own before a bad list can hurt you.
Most email tools have a quiet deal: you burn the domain,
they keep the subscription.
Since 2024, Gmail and Yahoo have had strict rules for bulk senders. Let spam complaints pass 0.3% and your emails stop arriving, for every campaign, every rep and every future customer. They ask senders to stay under 0.1%. Most tools mention this in a help article, then give you a bigger send button.
A burned domain doesn't show an error. Replies just quietly stop. By the time you notice, it's too late, and no tool can give it back.
The complaint rate where Gmail and Yahoo start blocking bulk senders outright.
The line they ask you to stay under. RepMail pauses your campaign here, automatically.
What it costs to buy back a burned domain. It's not for sale, at any price.
Seven stages. Every single email goes through all of them.
This is how RepMail really sends, not a marketing diagram. Each step exists because something can go wrong there, and when it does, RepMail stops or skips instead of guessing.
Your list gets checked first
Upload a CSV and RepMail maps the columns for you, then flags missing or messy fields before you write a single email.
AI writes the first draft
Answer a short brief (who you are, who you're writing to, what you're offering) and get a ready template in your chosen tone. One draft per campaign, which you review.
Mistakes get caught, not sent
A broken {{first_name}} tag stops the draft and gives your AI credit back. A spam check runs before anything can go out.
Steady pace, never a flood
Emails go out at a pace your email provider is happy with. If the background queue goes down, a backup sender takes over and follows the same rules.
Retries never send twice
Before any retry, RepMail checks each contact. Anyone who already got the email, bounced, complained or unsubscribed is skipped. Every time.
Only real reports count
Deliveries, bounces, complaints, opens and clicks only count when they arrive in a report signed by Amazon. Anything unsigned or unknown is thrown out.
It stops before the damage
Sending pauses by itself if complaints reach 0.05% — half the line Gmail tells senders to stay under — or bounces reach 3%. Mid-campaign, it re-checks every 50 emails.
Anyone can make promises.
We built ours in.
Nobody gets the same email twice
Retry a campaign as often as you like. Anyone who already got it, bounced, complained or unsubscribed is skipped.
You're never charged twice
Each credit moves exactly once. Even if a payment is confirmed twice at the same moment, you're only credited once.
It pauses before Gmail blocks you
The safety limits sit inside Gmail's published rules, not on the edge of them. RepMail stops you before the inbox providers have to.
Unsubscribe means unsubscribe
One click and that person is off every future campaign, permanently. Nobody on your team can accidentally email them again.
Your numbers are real
Open, bounce and delivery numbers only come from signed Amazon reports, so your dashboard can't be padded or faked.
There's a record of everything
Campaigns, credit changes and admin actions are all logged, so you can always answer "who did what, and when?"
AI writes the draft.
You stay in charge.
Tell RepMail who you are, who you're writing to and what you're offering. It writes a subject line and email in the tone you pick, then shows it filled in for up to three of your real contacts so you can see exactly what they'll get.
One draft per campaign, not a different AI email for every person. You can read what goes out, your costs stay predictable, and what you approve is exactly what gets sent.
Starting with email.
Built for every way you reach customers.
LetsZero builds the plumbing behind business communication so your team doesn't have to. RepMail is the first product. The tracking, credits and safety checks it runs on are what every product after it will be built on.
RepMailMessageHub
One place for every business message, with the same careful tracking RepMail has.
NotifyStream
Product notifications across channels, with every delivery confirmed the RepMail way.
Pay for the emails you send.
Not for empty seats.
Buy credits, then hand them out to your team like a budget. Every credit used is logged, so there are no surprise bills and no paying for people who barely send.
Learn what actually
gets you replies.
DeliverabilityThe Complete Guide to Email Deliverability
Reputation, authentication, spam filters and list hygiene, explained in one place.
Read the guide
Cold emailCold Email Benchmarks 2026: What Good Looks Like
Real open, reply, bounce and complaint rates, and how to tell if your campaign is on track.
Read the guide
DeliverabilityThe Complete Guide to Email Authentication
SPF, DKIM and DMARC in plain English, and why cold email fails without them.
Read the guideSend like your domain
depends on it.
RepMail is live and taking new teams now. Bring your list. We'll take care of keeping your domain safe.