Warm inboxes that land, every single time.
Before and while you run campaigns, PipeLime's managed warm-up pool of real inboxes exchanges natural, human-like conversations with your mailboxes, building sender reputation so your outreach hits the primary inbox, not the spam folder.
ava@acme.comPrimary sender WarmingA private pool of real inboxes
Reputation is built on genuine engagement, so we don't fake it. Every mailbox you connect quietly joins PipeLime's managed warm-up network, a private pool of thousands of real inboxes that trade authentic, human-like conversations with yours. No bots, no spam traps, no shortcuts that get you flagged.
- Thousands of real inboxes, not automated spam bots
- Genuine two-way threads your mailbox actually replies to
- Fully managed: it runs the moment you connect a sender
3.2kA private network of real inboxes holds genuine conversations with your mailbox, every day, building trust with every provider.
Reputation, built the right way
Inbox providers watch how people treat your mail. So the pool does exactly what trusted contacts do: it opens your messages, replies inside the thread, marks them as important, and rescues anything that slips into spam back to the inbox. Every positive signal teaches Gmail, Outlook and the rest that your domain belongs in the primary tab.
- Opens, replies and marks-as-important on every send
- Messages rescued out of spam and back into the inbox
- Positive signals compound into a rising sender score
Volume that ramps itself
A brand-new domain that suddenly blasts hundreds of emails is the fastest way to land in spam. PipeLime never lets that happen. Warm-up volume starts small and climbs a little each day, automatically, until your mailbox is trusted at full sending capacity, no risky spikes, no manual schedules to babysit.
- Gradual daily ramp, never a sudden, risky spike
- Fully automatic, no schedules or settings to manage
- Scales each mailbox to full volume, then holds it there
Always-on, across every provider
Warm-up isn't a one-time setup you switch off once campaigns start, it keeps running quietly in the background while you send. Works with Gmail, Outlook and any SMTP mailbox, and every inbox carries its own live health score so you always know a sender is safe before it goes to work.
- Works with Gmail, Outlook and any SMTP mailbox
- Keeps warming in the background while you send campaigns
- A live per-mailbox health score you can watch in real time
Your inboxes warm up. Your pipeline doesn't wait.
Warm-up takes a couple of weeks, and it should. Your campaigns don't have to wait for it: new accounts start sending the day they sign up, from PipeLime's own pre-warmed inboxes, up to your plan's daily allowance. Add your own mailboxes whenever you like; they warm up in the background and take over automatically once they're ready.
- First emails out the day you sign up, no domains or DNS to set up
- Automatic handoff to your own mailboxes once they're warm
- Guardrails for every sender: daily caps, bounce protection, no double-contacting
From cold mailbox to trusted sender
Four automatic steps turn a fresh inbox into a reputation providers trust, before your first campaign ever leaves the queue.
Connect your mailbox
Link a Gmail, Outlook or SMTP inbox. Warm-up is on by default, nothing else to configure.
Join the warm-up pool
Your mailbox quietly enters the managed pool of thousands of real, engaged inboxes.
Exchange & build reputation
The pool opens, replies, marks-important and rescues from spam, training providers to trust you.
Ramp volume & send safely
Volume climbs gradually to full capacity, and warming keeps running while your campaigns go out.
Everything working to keep you in the inbox
A complete, hands-off warm-up system that protects your domain end-to-end, paired with in-house email verification so bad addresses never touch your reputation either.
Managed warm-up pool
A private network of thousands of real inboxes exchanges genuine mail with your mailboxes, fully managed for you.
Human-like conversations
Natural, two-way threads that read exactly like real correspondence, not the robotic patterns providers punish.
Spam-folder rescue
Anything that lands in spam is opened and moved back to the inbox, teaching providers where your mail belongs.
Gradual volume ramp
Sending volume climbs a little each day, automatically, so you scale to full capacity without a risky spike.
Per-mailbox health score
Every sender carries a live reputation score so you know at a glance which inboxes are safe to send from.
Reputation monitoring
Deliverability and sender reputation are tracked continuously, no blind spots, no guessing when to send.
Works with any inbox
Gmail, Outlook or any SMTP mailbox, warm-up works the same across every provider you connect.
Always-on warming
Warm-up keeps running quietly in the background while you send, so deliverability stays high over time.
Deliverability alerts
If a mailbox reputation dips, you are flagged early, before it can quietly cost you replies and revenue.
Email warm-up questions
What is email warm-up and why do I need it?
How long until my inbox is warm?
Can I send before my mailboxes are warm?
Does it work with Gmail and Outlook?
Is the warm-up traffic safe and natural?
Does warming keep running while I send campaigns?
Is warm-up included in my plan?
Land in the inbox, not the spam folder.
Connect a mailbox and PipeLime’s managed warm-up pool goes to work, building a reputation providers trust, so every campaign reaches the primary inbox.
Put your pipeline on autopilot.
Set up in two minutes. Your first campaign can go out today, no mailbox setup needed.
No credit card · No mailbox needed