SuperSend

SuperSend is a cold email platform that pairs a campaign sequencer with dedicated sending infrastructure it builds, warms and operates for each customer: isolated servers, dedicated IPs, provisioned sender identities, deliverability monitoring and a shared reply inbox. It is aimed at outbound teams sending at very high volume, and its business lending page says the right fit is a team that sends 300k+ emails per month, or plans to. The homepage opens with "Traditional platforms say no cold email. We say yes." and says the company is sending millions of cold emails a month for its customers.

The sending infrastructure

The core of the offer is dedicated sending capacity: isolated nodes and dedicated IPs scoped to your volume, so your sending reputation is yours alone, with no shared pools and no neighbor risk. SuperSend provisions sender identities for you (approved domains, aliases and rotation), runs a managed reputation ramp before production volume, and monitors and manages sender health. The pricing page lists redirect domains and volume planning as part of the same package.

Volume fans out across several isolated servers, each with its own IP pool. If an IP or a domain gets flagged, traffic reroutes instantly to backup servers that are already warmed, which the site sums up as "Volume never stops." A parallel campaign execution feature lets one sender profile serve every campaign, with a supply-and-demand algorithm allocating capacity in real time so that no campaign starves another. The business lending page frames this against the typical mailbox stack, where teams run hundreds of domains and thousands of mailboxes, mailboxes disconnect every 30-90 days as OAuth tokens expire, and someone routes inboxes to campaigns by hand.

Warmup runs on SuperSend's own network of 30,000+ proprietary Google and Outlook mailboxes, and the infrastructure is warmed before the first production email goes out.

Delivery optimization

Rather than sending at a fixed rate, SuperSend paces mail from live delivery feedback. The homepage describes three layers: acceptance-aware sending, where pace follows live delivery signals instead of how fast the campaign queue fills; per-domain optimization, with an adaptive rate for each recipient domain based on acceptance and deferral signals in real time; and closed-loop tuning that tightens when acceptance slips and ramps up when signals recover, continuously, from SMTP events. The pricing page calls this per-domain delivery tuning.

Sequencing

The sequencing platform builds and runs campaigns across your sender pool with multi-step email flows, A/B tests, conditional routing and CRM integrations. Pacing, sender rotation and delivery rules sit at the campaign level. On the lending page, replies are auto-categorized (interested, applying, not now) and routed to Salesforce or your CRM via API, so sales only sees qualified leads. The site footer links to a SuperSend API and an MCP Server, and the lending page mentions API control among the needs of enterprise outbound teams.

Deliverability suite

The deliverability suite shows why mail lands, bounces or hits spam, across the senders you actually use:

• Placement testing. Automated tests run on your real senders using proprietary seed mailboxes and report inbox, spam and missing rates across Gmail, Outlook, Yahoo, iCloud and more. Tests auto-schedule on 7, 14 or 30-day intervals, with per-sender placement health.
• Bounce reasons. AI categorizes every bounce (bad addresses, server blocks, temporary failures, rate limits) in a 4-tier bounce system with 9 specific sub-types, so you can tell whether a problem is list quality, sender reputation or a temporary block. The homepage makes the point that a single bounce rate figure tells you nothing useful at scale.
• Reply labels. Every reply is classified by intent and sentiment (interested, meeting, out of office, unsubscribe), with auto-actions: unsubscribes removed, out-of-office contacts paused, webhooks fired.
• Domain and sender health. SPF, DKIM, DMARC, MX, rDNS and blacklist status are checked, with one-click resolve buttons and step-by-step guidance, and at-risk senders are flagged before they damage deliverability.
• Email validation. Addresses are validated before campaigns go out, catching hard-bounce risk early and protecting the dedicated sender pool.

Super Inbox

When a program runs across hundreds of senders and dozens of subdomains, replies scatter. The Super Inbox consolidates every reply from every sender identity into one searchable inbox, AI-categorized so interested replies, bounces, out-of-office messages and unsubscribes stay organized. The pricing page lists replies across all senders, AI reply labels, and search and workflows.

Pricing

Pricing is a flat platform fee plus a per-send rate based on your volume, and both are scoped on the first call. The site publishes no rates. The price includes the dedicated infrastructure (servers and IPs, sender identity provisioning, warmup and ramp planning), delivery optimization and monitoring (per-domain tuning, placement testing, bounce analysis and sender health), the campaign and reply tools (multi-step campaigns, sender rotation and pacing, CRM sync and A/B testing), and the unified reply inbox. The lending page says the scoping call looks at current volume and setup, gives clear economics before you commit, and that if SuperSend is not the right fit, it tells you in that call. Below 300k emails a month, it says, dedicated infrastructure is harder to justify, and above it "the ROI is usually clear within the first conversation."

Trust, legal and support resources

The footer links to a status page, a postmaster page, an acceptable use policy, a report abuse page, a compliance hub, a data processing agreement, a subprocessors list, a data retention page and a security measures page. SuperSend also publishes guides on high-volume cold email platforms, enterprise cold email infrastructure and migrating off shared ESP infrastructure, plus blog posts on sequencing at high volume, delivery through enterprise secure email gateways such as Proofpoint, Mimecast and Barracuda, and a scale checklist for RevOps teams.

Customers and results

SuperSend lists investment banking and business lending as its use cases, and the lending page says it is built for lenders sending 300k to millions of emails per month to small businesses across the US. A director of outbound at a B2B lending firm sending 2-3M emails a month is quoted: "100 form completions a day became 350." The page says the contacts and sending volume stayed the same, and the change was dedicated infrastructure plus a switch from HTML templates to plain text with AI-powered reply routing. Two other customers are named by type: a federal benefits contractor at 1.3M a month, whose placement tests confirmed inbox delivery before the first production send and whose infrastructure was live within weeks, and a B2B research firm at 1-2M a month, scoped, warmed and live within a month.

Who SuperSend suits

SuperSend fits outbound teams whose cold email runs in the hundreds of thousands or millions of messages a month and who are tired of managing mailbox sprawl: lenders, investment banks and other teams prospecting large numbers of businesses. It suits buyers who want the sending layer run for them, with reply routing into Salesforce or another CRM. A small team sending a few thousand emails a month is not the audience the site describes, and every buyer has to go through a scoping call to get a price.