SuperSend vs Sendbox in 2026: LinkedIn Add-on or Dedicated-IP Infrastructure

Sendbox vs SuperSend: Feature-by-Feature

Feature		SuperSend
Infrastructure
Dedicated IPs	Every plan A dedicated IP comes standard with every tier	No Dedicated IPs are not mentioned anywhere in their offering
Isolated Infrastructure	Yes Each account sends on fully isolated infrastructure	No Runs on infrastructure shared across customers
Email Warmup	Unlimited, AI-powered Warmup is AI-driven and tuned to get past detection filters	Included Warmup comes bundled into the platform
Deliverability Monitoring	Built-in Combines inbox placement testing with blacklist monitoring	Built-in Offers its own deliverability monitoring plus placement testing
Infrastructure Purchasing	No Domains and mailboxes need to be sourced elsewhere	Yes Domains and mailboxes can be purchased directly in-app
Sending
Email Accounts	Unlimited No hard cap in practice, governed by a fair-use policy most accounts never test	Plan-based Account allowance changes depending on the plan
Monthly Emails	75K to 2.5M Runs from 75K on Essential up to 2.5M on Agency	50K to 200K Runs from 50K on Growth up to 200K on Scale
Features
LinkedIn Sequences	No Outreach is scoped to email and phone, with no LinkedIn layer	Yes LinkedIn steps can be woven directly into sequences
Unified Inbox	Yes All connected accounts funnel into one inbox	Super Inbox Replies are consolidated under their Super Inbox feature
Built-in Dialer	Yes Every plan includes native calling capability	No No calling feature is offered
Lead Database	350M+ contacts A lead finder ships inside the platform	No There is no database of leads to search
Scale
White-label	From $499/mo Full white-labeling becomes available starting on Pro	No White-labeling is not offered

Pricing Comparison

Essential

75,000 emails · 30,000 leads

Dedicated IPs, validation, warmup, dialer 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

SuperSend

Growth

50,000 emails · N/A leads

Email + LinkedIn, deliverability monitoring

$99/mo

Scale

200,000 emails · N/A leads

Higher volume, infrastructure add-ons separate

$319/mo

Pricing takeaway

At the same $99/mo price point, Sendbox gives you 75K emails with dedicated IPs and a lead database. SuperSend gives you 50K emails on shared infrastructure with LinkedIn sequences. The choice depends on whether you need LinkedIn automation or dedicated IPs and a lead finder.

SuperSend Shared Pool vs Sendbox Dedicated IPs

Sendbox assigns dedicated IPs on every plan. SuperSend runs on shared infrastructure but compensates with built-in deliverability monitoring and placement tests. SuperSend's standout infrastructure feature is the ability to purchase domains and mailboxes directly inside the app, which simplifies setup for teams scaling their sending infrastructure.

For deliverability tooling, both platforms offer monitoring capabilities. Sendbox includes inbox placement testing, blacklist monitoring, and email validation. SuperSend includes deliverability monitoring and placement tests.

The key difference is the underlying IP architecture: Sendbox gives you dedicated IPs that isolate your sender reputation, while SuperSend shares infrastructure across users.

Multi-Channel Capabilities

SuperSend's main advantage over Sendbox is LinkedIn automation. You can combine email and LinkedIn actions in a single sequence. Profile visits, connection requests, and messages can be part of the same workflow as email follow-ups.

Sendbox focuses on email and phone. The built-in dialer lets you call warm leads directly from the platform. SuperSend has no dialer.

If your outreach strategy relies on LinkedIn, SuperSend has an edge. If it relies on phone calls, Sendbox wins.

Two $99 Plans, Different Email Allocations

Both platforms start at $99/mo. Sendbox Essential gives you 75K emails, 30K leads, dedicated IPs, and a built-in dialer. SuperSend Growth gives you 50K emails with LinkedIn sequences and deliverability monitoring on shared infrastructure.

At scale, SuperSend Scale costs $319/mo for 200K emails. Sendbox Plus costs $249/mo for 250K emails on dedicated IPs. Sendbox is cheaper for more volume with better infrastructure at the mid-tier.

Infrastructure add-ons on SuperSend are priced separately, adding to the total cost.

SuperSend for Domain Provisioning, Sendbox for Database

We recommend SuperSend if LinkedIn is a core part of your outreach strategy and you want email + LinkedIn in one tool with built-in infrastructure purchasing. The ability to buy domains and mailboxes inside the platform is a genuine time-saver. We recommend Sendbox if deliverability is your priority and you need dedicated IPs, a 350M+ lead database, and a built-in dialer.

At $99/mo, Sendbox gives you more emails and better infrastructure than SuperSend at the same price.