features

Everything Sendbox does for cold email

The full outreach workflow in one platform: sequences, inbox, dialer, CRM, and analytics, all running on dedicated IPs instead of shared infrastructure.

14 features4 categories

Showing 14 of 14

Outreach
Campaigns
Sendbox campaigns let you stack email steps with custom wait windows, run several A/B variants side by side, branch logic with IF/THEN/ELSE rules, and rotate phrasing through spintax. The optimization engine watches performance and quietly benches the variants that underperform. Because each mailbox is permanently tied to its own dedicated IP through sticky hash assignment, none of that sending shares infrastructure with anyone else.
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Outreach
Mailboxes
Add Gmail, Outlook, or any provider that speaks IMAP/SMTP. Once connected, warmup kicks off in the background on its own, you set the volume targets and reply-rate goals, Sendbox does the rest. DNS health checks continuously confirm your SPF, DKIM, and DMARC records are configured correctly.
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Outreach
A/B Testing
Write as many variants as you want for any step in the sequence. The optimization engine shifts sending volume toward whatever's winning and quietly pauses what isn't. You control the guardrails: minimum sends per variant, how many days it waits before acting, and the threshold that triggers an auto-pause.
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Outreach
Webhooks
Trigger a webhook whenever a lead is created or added, replies, or bounces, or when an email sends or gets opened. Configure it per campaign, and verify every payload came from Sendbox using a secret-key signature.
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Workspace
Unified Inbox
Replies from every campaign and mailbox funnel into a single view. Conversations stay threaded, you can search and filter across everything, mark items read or unread, and archive what's done. You stop hopping between individual email accounts to figure out who wrote back.
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Workspace
Dialer
Sendbox ships with VoIP calling, so leads get called from right inside the platform. Buy a phone number, load up calling credits, and start dialing. Calls record with playback, each caller earns a health score, and you see the lead's full context before you ever pick up the phone.
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Workspace
CRM Integrations
Leads and activity sync with whatever external CRM you use. Sync jobs manage the actual data movement, while CRM webhooks let events inside Sendbox trigger actions on the CRM side.
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Data & Leads
Lead Finder
Search by company, industry, job title, and location to find your list. The first 3 pages, 75 leads, preview for free. From there, enrich through multiple providers, including LeadMagic, Icypeas, Hunter, Wiza, FullEnrich, and BetterContact. Exports cap out at 10,000 leads at a time.
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Data & Leads
CRM
Manage your pipeline on drag-and-drop boards. A built-in "Replied" board fills itself in as leads respond, and you can spin up custom boards with your own colors, filter by campaign, and search across every lead. AI tag boards go a step further, sorting leads automatically by how their reply was classified.
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Data & Leads
Analytics
Sends, opens, clicks, replies, and bounces are all logged at the individual-email level, then rolled up however you want, by campaign, step, mailbox, or time range. A 1x1 tracking pixel embedded in every email handles open detection. Click tracking rewrites outbound links through Sendbox's own redirect service, tying each click back to the specific lead. Reports export as PDF or CSV on whatever cadence you set, daily, weekly, or monthly.
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Data & Leads
CSV Import
Drop in a CSV and Sendbox maps the fields, checks every email address (sorting each into deliverable, undeliverable, risky, or unknown), assigns a confidence score, and flags catch-all domains along the way. Bad addresses never make it into a campaign.
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AI Features
AI Tagging
Incoming replies get read by AI and tagged into categories you've defined yourself, each with its own name, description, color, and a positive-or-negative flag. Configure the AI agent with your company's domain, a tone, and custom instructions, and those tags then feed directly into CRM boards.
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AI Features
ESP Matching
Sendbox figures out each recipient's email provider through domain lookup and MX records, then sends through a mailbox on that same provider, Gmail recipients get a Gmail sender, Outlook recipients get an Outlook sender. Gmail, Outlook, Yahoo, Apple, and custom domains are all supported.
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AI Features
SEG Detection
Sendbox checks whether a recipient's domain sits behind a Secure Email Gateway. Once flagged, you choose: skip that lead entirely, or route them through specific mailboxes set aside for SEG handling.
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Everything Sendbox does for cold email

All features

Campaigns

Mailboxes

A/B Testing

Webhooks

Unified Inbox

Dialer

CRM Integrations

Lead Finder

CRM

Analytics

CSV Import

AI Tagging

ESP Matching

SEG Detection

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