OutPumperCold email, from inside Outlook
Send cold email from your own domain.
OutPumper runs inside Outlook and sends from the address your prospects already trust. No warmup, no throwaway domains, and no third-party servers between you and the inbox.
Every other tool
- Sends from their servers, on shared IPs you do not control
- Wants 30 to 50 throwaway domains
- Two to three weeks of warmup before you send a thing
- Your contact data sits on their infrastructure
- Mail arrives from an address your prospects have never seen
OutPumper
- Sends from your Outlook and your real domain
- Zero extra domains. Use the one you already have
- Send on day one. Nothing to warm up
- Your data never leaves your Microsoft 365 tenant
- Mail arrives from the address clients already reply to
The essentials
Everything cold email needs, inside Outlook.
No external app to learn, no separate sending infrastructure to manage. OutPumper adds the full outbound engine to the inbox you already work in.
Multi-step sequences
Follow-ups that run on autopilot, with per-contact tracking so you always know where every prospect stands.
Smart throttling
Sends in natural waves and slows down as needed. An automatic stop keeps you clear of Microsoft's limits.
Mailbox rotation
Detects your user and shared mailboxes and rotates across them automatically. Shared mailboxes are free in M365.
Word variation
Rewrites each email so no two are identical, which keeps pattern-matching spam filters from flagging your sends.
Built-in verification
Every address is verified before it is sent to. Unlimited, included, with no per-check fee.
Bounce intelligence
A bounced address is blacklisted across every campaign automatically, so your sends get cleaner over time.
What it replaces
Tools other senders pay for, included.
Email verification
Built into the sending engine. Verify ten addresses or ten million for the same price.
Warmup tools and extra domains
Send from your own domain on day one. No warmup service to subscribe to, no 30 to 50 throwaway domains to buy.
Bounce list hygiene
Auto-blacklisting across all campaigns, past and future. No manual cleanup, no re-uploading cleaned lists.
How it works
Three steps to your first campaign.
Install the Outlook add-in
Download, install, and OutPumper appears in your Outlook ribbon. Microsoft 365 plus desktop Outlook is all you need.
Drop in your list
Import a CSV with any columns. No mapping wizard, no long setup. Your contacts are ready to send.
Send from your domain
OutPumper sends from your real address, throttled and rotated automatically, and tracks every reply in a live dashboard.
Stop renting someone else's sending reputation.
Your Outlook already does the hard part. OutPumper unlocks the rest. Try it free for seven days.
Questions
Straight answers.
Do I need Microsoft 365?
Yes. OutPumper is an Outlook add-in. If you have desktop Outlook connected to a Microsoft 365 account, you are ready to go. That is the only requirement.
Will this get my account banned?
OutPumper is built around Microsoft's sending limits. It throttles automatically, sends in natural waves, and stops before you approach a limit, so your account stays in good standing.
How is this different from Instantly?
Instantly sends from its own servers, which means buying 30 to 50 throwaway domains, warming them for weeks, and still sending from an address your prospects have never seen. OutPumper sends from your own Outlook and your real domain.
Can I connect external providers?
Yes. Connect Google Workspace, SendGrid, Mailgun, Amazon SES, or any standard SMTP server, and manage all of it from one dashboard inside Outlook.
Is there a trial?
The Pro and Agency plans include a 7-day free trial. We collect a card up front but charge nothing during the trial. Cancel before day seven and you pay nothing. The Lifetime plan is a one-time purchase and does not include a trial.
What is the refund policy?
Thirty days, no questions asked. If OutPumper is not right for you, you get every cent back.