For cold email teams running 10–500+ inboxes

Turn hundreds of cold email inboxes into one organized sales pipeline.

Connect Gmail, Outlook, and any IMAP mailbox. AI labels every reply — interested, not interested, OOO, bounce — and routes the hot ones to your team. No DNS changes. No noise.

See pricing$29/mo + $1/inbox · No card required
app.oneinboxhq.com/inbox
SC
Sarah Chen2m
Acme Logistics
Yes — interested in a demo next week
Interested
MW
Marcus Webb9m
Northwind Co
I'm out until Monday, please reach out then.
OOO
PS
Priya Shah21m
BluePeak
Wrong person — try our procurement lead.
Wrong person
TA
Tom Alvarez44m
Helio Labs
Send me the deck and pricing for 50 seats.
Interested
1h
noreply@server
Mail delivery failed: returning message to sender
Bounce
FROM sarah.chen@acme-logistics.com
VIA outreach07@yourdomain.io

Re: Quick question about your fleet

Hey — yes, this is interesting. Can you send a 15-min demo link for next Tuesday or Wednesday? Loop in our ops lead too.

AI SUGGESTED REPLY

Perfect — sending a Calendly for Tue/Wed now. Would 2pm ET Tuesday work? I'll include your ops lead.

IMAP / SMTP
Universal connect
Gmail OAuth
1-click linking
Outlook 365
Native support
No DNS changes
Zero deliverability risk
What you get

Every reply, sorted. Every lead, surfaced.

Stop alt-tabbing between 80 Gmail tabs. OneInbox pulls every reply into one queue and tells you exactly what matters.

Universal mailbox connect

IMAP, SMTP, Gmail OAuth, Outlook 365, or forwarding rules. No DNS, no MX changes, no risk to your sending reputation.

AI reply intelligence

Every incoming reply auto-labeled: Interested, Not interested, OOO, Wrong person, Unsubscribe, Bounce, Needs manual reply.

Auto-reply automation

Send templated follow-ups for common objections. Book meetings on autopilot for hot leads.

One unified queue

All inboxes in one view. Filter by label, sender, campaign, or sentiment. Reply from the original mailbox in one click.

Team & VA workflow

Assign replies to a salesperson or VA. Track who handled what. Built for agencies and lead gen teams.

Deliverability monitoring

Watch placement, bounce rates, and warm-up health across every inbox in real time.

How it works

Live in 10 minutes. No DNS surgery.

01

Connect inboxes

Bulk-add Gmail, Outlook, or IMAP credentials. Or auto-forward from your sending tool.

02

AI reads every reply

Each new email is labeled, scored, and routed. Hot leads bubble to the top of your queue.

03

Your team replies

Assign to a VA or salesperson. Send replies from the original mailbox. Done.

Pricing

Pay for inboxes. Add intelligence as you grow.

$29/mo platform fee + $1 per connected mailbox. Stack AI features per inbox — only on the ones that need it.

Starter
$29/mo
+ $1/mailbox/mo
  • Up to 25 inboxes
  • Unified reply queue
  • Send from original mailbox
  • Basic AI labeling
  • Email support
Most popular
Growth
$79/mo
+ $3/mailbox/mo
  • Unlimited inboxes
  • AI reply tagging (+$1)
  • Auto-reply automation (+$1)
  • Deliverability monitoring (+$1)
  • Team assignment & VA workflow
  • Priority support
Agency
$299/mo
+ custom per mailbox
  • Everything in Growth
  • Multi-client workspaces
  • Custom AI training
  • API access & webhooks
  • SLA + dedicated CSM
  • White-label option
AI add-ons (per mailbox)
Basic unified inbox
$1 / mailbox / mo
Included
AI reply tagging
+ $1 / mailbox / mo
Add-on
Auto-reply automation
+ $1–$2 / mailbox / mo
Add-on
Deliverability monitoring
+ $1 / mailbox / mo
Add-on
Team assignment / VA workflow
Included in Growth+
Plan

Stop missing replies.
Start closing them.

Join cold email agencies, recruiters, and B2B sales teams running their entire reply pipeline from OneInbox.

$29/mo + $1/inbox · No card required · Live in 10 minutes