SendboxvsReachInbox

ReachInbox vs Sendbox in 2026: Shared Infrastructure Even at the $999 Enterprise Tier

ReachInbox's Starter plan runs $30/mo billed yearly and climbs all the way to a $999/mo Enterprise tier, yet the infrastructure underneath never stops being shared, even at the top. Sendbox takes a different route, building a dedicated IP into its entry-level plan from day one.

Ritesh Chauhan
3 min readUpdated Mar 2026

The Verdict

ReachInbox opens at $30/mo when billed yearly, offering "unlimited" email accounts on Starter and scaling up to 1M emails a month on its $225/mo (billed yearly) Pro tier. On paper the feature list reads well: AI-built sequences, warmup, website visitor identification, and inbox placement testing all show up. The catch sits underneath all of it -- ReachInbox routes everything through shared infrastructure, with no dedicated IP option on any plan, and that "unlimited" accounts claim is quietly bounded by a Fair Usage Policy.

Sendbox takes the opposite starting point: dedicated IPs, isolated infrastructure, and a substantial email allowance from the entry tier onward. Teams that need real deliverability guarantees will find Sendbox's infrastructure meaningfully sturdier.

Sendbox vs ReachInbox: Feature-by-Feature

9 Sendbox wins2 Ties1 ReachInbox wins
FeatureSendboxReachInboxReachInbox
Infrastructure
Dedicated IPs
Every plan

A dedicated IP is included with every plan

No

All plans run on shared infrastructure instead

Isolated Infrastructure
Yes

Sending is fully isolated, account by account

No

Everyone sends through shared pools

Email Warmup
Unlimited, AI-powered

AI drives warmup and is tuned to get past detection filters

Included

Warmup ships as standard across every plan

Inbox Placement Testing
Built-in

Verify inbox vs spam placement before a campaign ships

Built-in

Placement testing comes included as well

Website Visitor ID
No

This capability is not part of the product

Yes

Surfaces which companies are visiting your site for outreach

Sending
Email Accounts
Unlimited

Effectively unlimited, held only to a fair-use policy typical accounts never bump into

"Unlimited" (FUP)

3 accounts on Free, then "unlimited" from Starter up, though a Fair Usage Policy applies

Monthly Emails
75K to 2.5M

Climbs from 75K on Essential up to 2.5M on Agency

250 to 1M

Climbs from 250 on Free up to 1M on the $225/mo Pro tier

Lead Storage
30K to Unlimited

Starts at 30K on Essential and opens up to unlimited on Pro

Plan-based

Storage allowance changes by tier

Features
AI Sequences
Yes

Sequences are optimized through built-in AI

Yes

AI helps build out sequences from scratch

Built-in Dialer
Yes

Calling is built natively into the product

No

No calling feature exists

Lead Database
350M+ contacts

A lead finder is built directly into the platform

No

There is no lead database to draw from

Scale
White-label
From $499/mo

Full white-labeling becomes available on Pro

No

White-labeling is not offered

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Pricing Comparison

Sendbox
Essential

75,000 emails · 30,000 leads

Dedicated IPs, all tools included

$99/mo
Plus

250,000 emails · 100,000 leads

All deliverability tools + finder credits

$249/mo
Pro

500,000 emails · Unlimited leads

White-label, unlimited leads

$499/mo
Agency

2,500,000 emails · Unlimited leads

Dedicated account manager

$899/mo
ReachInboxReachInbox
Free

250 emails · N/A leads

3 email accounts, basic testing

$0/mo
Starter

10,000 emails · N/A leads

"Unlimited" accounts (FUP), shared infrastructure

$30/mo (billed yearly)
Growth

250,000 emails · N/A leads

Shared infrastructure, AI sequences

$75/mo (billed yearly)
Pro

1,000,000 emails · N/A leads

Shared infrastructure, full features

$225/mo (billed yearly)
Enterprise

Custom emails · N/A leads

Custom volume, priority support

$999/mo

Pricing takeaway

ReachInbox Growth at $75/mo (billed yearly) gives you 250K emails on shared infrastructure. Sendbox Essential at $99/mo gives you 75K emails on dedicated IPs. If you need raw volume, ReachInbox is cheaper per email. If you need deliverability guarantees, Sendbox is worth the premium for dedicated IPs.

ReachInbox Shared on $999 vs Sendbox Dedicated on $99

Sendbox assigns dedicated IPs to every account on every plan. ReachInbox runs on shared infrastructure across all plans from Free to Enterprise ($999/mo). The "unlimited" email accounts on ReachInbox Starter ($30/mo, billed yearly) have Fair Usage Policy limits, meaning the actual number of accounts you can connect is capped even though the marketing says unlimited.

ReachInbox does include inbox placement tests, which is a useful deliverability tool. Sendbox includes inbox placement testing, blacklist monitoring, and email validation. Both platforms help you monitor deliverability, but only Sendbox gives you the dedicated IP foundation that prevents shared infrastructure problems in the first place.

Key takeaways

  • Sendbox: dedicated IPs on all plans
  • ReachInbox: shared infrastructure on all plans including Enterprise
  • ReachInbox "unlimited" accounts subject to Fair Usage Policy
  • Both offer inbox placement testing

What ReachInbox Skips That Sendbox Bundles

ReachInbox has a feature Sendbox does not: website visitor identification. This lets you identify companies visiting your website and use that data for targeted outreach. It is a genuine differentiator for teams running inbound-to-outbound workflows.

Sendbox includes a built-in dialer and a 350M+ lead database, neither of which ReachInbox offers. For teams that combine email with phone outreach or need to source leads from within the platform, Sendbox provides more built-in tools.

Key takeaways

  • ReachInbox: website visitor identification for intent-based outreach
  • Sendbox: built-in dialer and 350M+ lead database
  • ReachInbox: no dialer and no lead database
  • Sendbox: no website visitor identification

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ReachInbox Yearly Billing vs Sendbox Monthly Plan

ReachInbox is significantly cheaper for raw email volume. Their Growth plan at $75/mo (billed yearly) gives you 250K emails. Sendbox Essential at $99/mo gives you 75K emails.

That is over 3x the volume for less money. The trade-off is infrastructure. ReachInbox runs all that volume through shared IPs.

Sendbox runs 75K emails through dedicated IPs. For teams where deliverability directly affects revenue, the lower volume on dedicated IPs often produces better results than higher volume on shared infrastructure. At the Pro tier, ReachInbox charges $225/mo (billed yearly) for 1M emails on shared infrastructure.

Sendbox Pro charges $499/mo for 500K emails on dedicated IPs with white-label. The price-per-email favors ReachInbox, but the deliverability architecture favors Sendbox.

Key takeaways

  • ReachInbox Growth: $75/mo (billed yearly) for 250K emails, shared infrastructure
  • Sendbox Essential: $99/mo for 75K emails, dedicated IPs
  • ReachInbox is cheaper per email but runs on shared infrastructure
  • Sendbox is more expensive but provides dedicated IP isolation

ReachInbox for AI Workflows, Sendbox for Infrastructure

We recommend ReachInbox if you need high volume at a low price, want website visitor identification, and shared infrastructure risk is acceptable. The Growth plan at $75/mo for 250K emails is strong value for teams testing outbound at scale. We recommend Sendbox if deliverability is your primary concern and you need dedicated IPs, a lead database, and a built-in dialer.

The infrastructure isolation alone justifies the $99/mo price for teams whose revenue depends on inbox placement.

Key takeaways

  • Choose ReachInbox if: need high volume cheaply, want website visitor ID, shared infrastructure is OK
  • Choose Sendbox if: deliverability is priority, need dedicated IPs, want lead database and dialer

Pros & Cons

Sendbox

Strengths

  • Dedicated IPs on every plan from $99/mo
  • 350M+ lead database included
  • Built-in dialer for cold calling
  • Fully isolated infrastructure
  • White-label from $499/mo
  • Fair-use policy published openly with caps typical users never reach

Limitations

  • Higher cost per email than ReachInbox
  • No website visitor identification
  • Newer platform with smaller community

ReachInbox

Strengths

  • Low entry price at $30/mo
  • Free plan available
  • Website visitor identification
  • 250K emails at $75/mo (Growth)
  • Inbox placement tests included
  • AI sequence creation

Limitations

  • Shared infrastructure on all plans, no dedicated IPs
  • "Unlimited" accounts subject to Fair Usage Policy
  • No lead database
  • No built-in dialer
  • No white-label
  • Infrastructure details not fully transparent

ReachInbox Screenshots

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Sources

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No. ReachInbox uses shared infrastructure on all plans from Free to Enterprise. Sendbox includes dedicated IPs on every plan starting at $99/mo.

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