How many inboxes does a cold email agency need per client?

Most cold email agencies use 10-30 inboxes per client. The formula is: daily send target divided by 25 emails per inbox equals inboxes needed. For 500 emails/day you need 20 inboxes. LiteMail's Growth plan covers 30 inboxes at $97/month.

10,000+ Agency Inboxes Managed · Separate Workspace per Client

Cold Email Inboxes
Built for Cold Email Agencies
Scale Clients Without Scaling Costs

Google Workspace

Microsoft 365

LiteMail

LiteMail gives cold email agencies what they actually need: isolated client workspaces, Google Workspace and Microsoft 365 inboxes on your clients' domains, automated DNS, and bulk OAuth export to Instantly and Smartlead — all from one dashboard.

Get Started — From $2.50/inbox Book a Demo

100+Client Workspaces

$2.50Per Inbox/Month

5 MinPer Client Setup

0Platform Lock-In

Connect agency client inboxes to your sending tool:

Instantly

Smartlead

Pipl.ai

Cloudflare

GoDaddy

Porkbun

Why Agencies Choose LiteMail

Cold Email Inbox Infrastructure
Built Around Agency Workflows

Every LiteMail feature is designed for agencies managing multiple clients at scale — not solo senders. Here is what sets us apart.

🏢

Separate Workspace per Client

Create isolated workspaces for each client — separate domains, inboxes, DNS records, and admin credentials. One client's domain issue never bleeds into another's campaigns.

📬

Official GWS & MS365 on Client Domains

Provision official Google Workspace and Microsoft 365 inboxes on your clients' sending domains. Full admin access. Inboxes owned by your client — not rented from a platform.

⚡

Bulk Setup in Under 5 Minutes per Client

LiteMail automates every step — domain connection, DNS, SPF, DKIM, DMARC, inbox provisioning. Onboard a new client with 30 inboxes in under 5 minutes. No technical knowledge required.

🔗

Bulk OAuth Export to Instantly & Smartlead

Export all client inboxes to Instantly, Smartlead, Pipl.ai, and all major sending platforms in one click. Connect 30 inboxes in the time it used to take to connect 3.

🔥

Pre-Warmed Inboxes — Start Day 1

Launch new client campaigns immediately. Pre-warmed Google Workspace inboxes with 12 weeks of send history — no 4–6 week warm-up wait. Free domain replacement if blacklisted.

💰

Agency Margins That Actually Work

At $2.50/inbox, your infrastructure cost is lower than any competitor. Resell at $5–8/inbox and keep the margin. No platform fees, no per-seat tax, no minimum orders.

📊

API Access for Bulk Provisioning

Pro and Scale plans include API access for programmatic inbox provisioning. Build your own client onboarding workflow, automate domain setup, and integrate LiteMail into your agency stack.

🛡️

Free Domain Replacement — Zero Blacklist Risk

Every pre-warmed plan includes free domain replacement if a sending domain gets blacklisted. For agencies managing live campaigns, this protection is non-negotiable.

🌐

US & EU IPs for Global Client Outreach

All LiteMail inboxes use dedicated US and EU IP addresses. Run campaigns for North American and European clients with regional IP optimization for maximum inbox placement rates.

How It Works

Onboard a New Client in Under 5 Minutes

LiteMail automates every step of client inbox provisioning — domain setup to fully configured sending infrastructure — so you can onboard faster.

Create a New Client Workspace

Open LiteMail and create an isolated workspace for your new client. Separate credentials, domains, and DNS — completely isolated from all other clients.

Connect or Register Sending Domains

Use existing client sending domains or register new ones through LiteMail. AI Domain Finder suggests high-deliverability domain alternatives at $15/year.

Automated DNS — SPF, DKIM & DMARC

LiteMail auto-configures full email authentication on every client domain in seconds. No manual DNS work, no IT tickets, no propagation delays.

Google Workspace Inboxes Provisioned

Official Google Workspace Business accounts created on client sending domains with personalized sender names and profile photos. Ready in under 5 minutes.

Bulk OAuth Export to Sending Tool

Export all client inboxes to Instantly, Smartlead, or any cold email platform in one click. Client campaigns launch immediately — no manual SMTP configuration.

Comparison

LiteMail vs Other Inbox Providers
for Cold Email Agencies

See how LiteMail compares against every alternative for cold email agencies managing multiple clients at scale.

Feature	LiteMail	Other Providers
Price per Inbox/Month	$2.50	$3.50–$8.00
Separate Workspace per Client	✓ Yes — fully isolated	✗ Shared dashboard
Official GWS + MS365 Accounts	✓ Yes	SMTP or shared
Minimum Order	✓ None — start with 1	Often $39–$99/mo min
Free Domain Replacement	✓ On pre-warmed plans	✗ Not included
Bulk OAuth Export	✓ One-click	Manual SMTP
Auto DNS (SPF/DKIM/DMARC)	✓ Fully Automated	Manual or partial
API Access	✓ Pro & Scale plans	Limited or paid extra
Client Inbox Ownership	✓ Client owns accounts	Platform-retained
US/EU Dedicated IPs	✓ Yes	Shared IPs common
100 Inboxes Monthly Cost	$250/month	$350–$800/month

Pricing & Plans

Cold Email Inbox Plans for Agencies —
From $2.50 Per Inbox Per Month

All plans include official Google Workspace inboxes, isolated client workspaces, automated DNS, SPF, DKIM, DMARC, and dedicated US/EU IPs. No contracts, cancel anytime.

Starter

Best for freelance agencies managing 1–2 clients

$37/ month

Add domain at $15/year

✓10 Google Workspace Cold Email Inboxes
✓Up to 250 cold emails per day
✓Extra mailboxes at $3.50/mailbox/month
✓Dedicated US/EU IP accounts only
✓Auto DNS + SPF + DKIM + DMARC
✓Connect existing or new domains
✓OAuth export to Instantly & Smartlead
✓Full Google Admin Console access

Get Starter Plan

Everything Cold Email Agencies Get
with Every LiteMail Inbox

Every LiteMail inbox plan for agencies comes with the full infrastructure stack — not just mailboxes but a complete client onboarding and sending system.

WorkspaceIsolated Client Workspace per Account

Each client gets a completely separate workspace — their own Google Workspace admin console, domains, inboxes, and DNS records. One client's spam complaints never affect another's deliverability.

DNSAutomated SPF, DKIM & DMARC on Every Domain

Full email authentication auto-configured on every client domain instantly. Proper DMARC enforcement ensures cold emails from all client inboxes pass every major spam filter.

InboxesOfficial Google Workspace & MS365 Inboxes

Every agency inbox is a real Google Workspace Business Starter or Microsoft 365 Business account — not SMTP relays. Full admin access, dedicated IPs, maximum deliverability trust.

WarmupPre-Warmed Inboxes for Instant Client Launches

LiteMail pre-warmed plans let agencies launch new client campaigns immediately — no 4-6 week warm-up delay. 12 weeks of warm-up history built in, free domain replacement included.

ExportBulk OAuth Export to Any Sending Platform

Export all client inboxes to Instantly, Smartlead, Pipl.ai, Lemlist, and more via one-click OAuth. Connect 30 client inboxes in under 2 minutes. No fragile SMTP credentials.

APIAPI Access for Automated Client Onboarding

Pro and Scale plans include full API access. Build automated client onboarding workflows, provision inboxes programmatically, and integrate LiteMail into your agency toolstack.

Agency Wall of Love

What Cold Email Agencies Say About
LiteMail Inbox Infrastructure

Here is what agency owners say about running client campaigns on LiteMail Google Workspace inboxes.

★★★★★

"LiteMail is the only inbox provider that gives each client a completely isolated workspace. Setup is 5 minutes per client, bulk OAuth export to Instantly works perfectly, and pre-warmed inboxes mean we launch new clients the same day they sign."

Michael L.

Agency Owner, 12 Clients

★★★★★

"We run 150+ inboxes across 8 clients through LiteMail. The separate workspaces keep everything clean, the pricing is 40% below what we were paying before, and free domain replacement on pre-warmed plans has saved us twice already."

Sophia M.

Head of Outreach, Growth Agency

★★★★★

"Switched to LiteMail from Zapmail 6 months ago. We save $800/month on 100 inboxes and the Google Workspace accounts have better deliverability. API access on Pro lets us automate our entire client onboarding workflow."

James P.

Founder, B2B Lead Gen Agency

FAQ

Frequently Asked Questions

LiteMail gives agencies a separate workspace per client — each with its own domains, inboxes, DNS records, and admin credentials. Manage all clients from one dashboard. One client's domain reputation never affects another.

Most cold email agencies use 10–30 inboxes per client depending on volume. The formula is: (daily send target ÷ 25 emails per inbox) = inboxes needed. For 500 emails/day you need 20 inboxes. LiteMail's Growth plan covers 30 inboxes at $97/month.

25 emails per inbox per day is the recommended safe limit for cold email after warm-up. Sending more risks spam complaints and domain blacklisting. LiteMail's infrastructure is calibrated around this limit for maximum long-term deliverability.

Yes. LiteMail pre-warmed plans include Google Workspace inboxes with 12 weeks of warm-up history, domains included, and free domain replacement. Agencies use pre-warmed inboxes to launch new client campaigns immediately without a 4–6 week warm-up wait.

Each client gets an isolated workspace with separate Google Workspace or Microsoft 365 admin consoles, separate domains, and separate DNS records. Full client credential handoff available. Inboxes are owned by the client, not the agency.

Yes. LiteMail supports one-click bulk OAuth export to Instantly, Smartlead, Pipl.ai, Lemlist, and all major cold email platforms. Connect a client's 30 inboxes to Instantly in under 2 minutes.

Most professional cold email agencies use a 60/40 split — 60% Google Workspace for Gmail-heavy prospect lists and 40% Microsoft 365 for enterprise and Outlook-heavy targets. LiteMail provisions both from the same dashboard at the same price.

Yes. LiteMail's Scale plan covers 300 inboxes at $849/month with extra mailboxes at $2.85/inbox. For agencies needing 300+ inboxes, custom bulk pricing is available — contact support@litemail.ai.

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