The Best Staffing Lead Is a Company That's Hiring Right Now
Most B2B cold email starts from a guess about who might need you. Staffing BD doesn't have to — the buying signal is public. A company with eleven open warehouse roles posted in the last three weeks has a problem your firm solves, and it's announcing that problem on every job board it can find. The only question is whether your pitch reaches the right HR or ops leader before a competitor's does.
Apollo is where you catch that signal: its job-posting filters and hiring signals surface companies actively recruiting in your specialty, sized by how many roles are open, and its title filters pinpoint the person who owns the staffing budget. ColdRelay is the infrastructure underneath — the secondary domains, mailboxes, and dedicated IPs that Apollo's sequences send from. This guide covers wiring the two into a signal-driven client acquisition engine that refreshes itself every week.
Why Run Apollo on ColdRelay Infrastructure
Apollo combines a B2B contact database with sequencing — you can find the companies, find the buyer, and launch the outreach without leaving one tool. For staffing BD specifically, its job-posting filters are the difference between cold lists and warm timing: you're not emailing companies that might hire someday, you're emailing companies with open reqs this week.
What Apollo doesn't do is provision the sending infrastructure. Its sequences send from whatever mailboxes you link under Settings → Mailboxes, and the deliverability of those mailboxes is entirely on you. That's the layer ColdRelay supplies: dedicated mailboxes on isolated Azure tenants with dedicated IPs, DNS (SPF, DKIM, DMARC) pre-configured, live in about an hour, with no warmup period before they can send. ColdRelay supports 100-150 mailboxes per domain, so even a multi-specialty desk fits on a few secondary domains.
The two are complementary layers, not competitors: Apollo finds the hiring signal and runs the sequence; ColdRelay makes sure the email actually lands. A signal-triggered pitch that goes to spam is worth exactly as much as no pitch at all.
Visit Apollo →Building a Signal-Driven BD Engine in Apollo on ColdRelay Mailboxes
Provision ColdRelay mailboxes on secondary domains
Order mailboxes on domains adjacent to your firm's name — never the primary domain your contracts and submittals run on. Everything provisions on isolated Azure tenants with dedicated IPs in about an hour, with SPF, DKIM, and DMARC pre-configured, and ColdRelay supports 100-150 mailboxes per domain. Signal-driven BD lists are precise rather than huge, so most firms start smaller here than they would for volume outreach.
Link the mailboxes in Apollo under Settings → Mailboxes
Connect each ColdRelay mailbox in Apollo via Settings → Mailboxes so sequences can rotate across them. Set each mailbox's daily send limit in Apollo to 2 outbound emails per day — that mirrors ColdRelay's per-mailbox budget of 4 sends/day total, split 2 outbound + 2 warmup, with warmup running continuously on ColdRelay's side.
Build one saved search per specialty using job-posting filters
In Apollo's company search, filter by active job postings in the roles your firm places — nursing, light industrial, software engineering, finance — and layer in geography, headcount, and how many roles are open. Save one search per specialty you serve. These saved searches are the engine: they refresh as new companies start hiring, so each week's BD list builds itself.
Layer saved personas to find the buyer, not just the company
A hiring signal tells you the company; Apollo's title filters tell you who signs the staffing agreement. Build saved personas for the buyers in your vertical — VP of People, Director of Talent Acquisition, HR Manager, Plant or Operations Manager for industrial accounts — and apply them on top of each specialty search so every list resolves to two or three named decision-makers per company.
Run a weekly cadence: refresh, enroll, sequence
Once a week, open each saved search, pull the companies that newly match, and enroll their buyer contacts into the matching Apollo sequence. Build the sequence with email steps first — sent from your ColdRelay mailboxes — then Apollo's call and LinkedIn task steps for recruiters to work the warm replies and non-responders. The signal is freshest in the first weeks a role is posted, so the whole loop should run on a standing weekly rhythm.
The Job-Signal BD Playbook for Apollo
Open with their open roles
The strongest first line in staffing BD is proof you did the homework: name the number and type of roles they're hiring for. 'Saw you have 14 open RN positions across three facilities' earns a read that 'we're a leading healthcare staffing agency' never will — and Apollo's job-posting data gives you that line for every company on the list.
Rank by role count — it's a pain meter
Apollo shows how many positions a company has open, and that number is effectively a measure of how much their internal recruiting is struggling. A company with two openings fills them alone; a company with twenty in one function is behind and knows it. Sort each specialty search by open-role count and work the top of the list first.
Match the persona to the placement type
The buyer changes with what you place. Corporate HR and Talent Acquisition titles buy professional and clinical staffing; Plant Managers and Operations Directors often own light-industrial and warehouse staffing decisions directly. Keep separate Apollo personas per placement type so the eleven-open-warehouse-roles signal routes to the ops leader, not a corporate inbox that forwards it nowhere.
Strike while the postings are fresh
A job posting is a decaying signal: in week one the company is optimistic, by week four they're frustrated, by week eight the req is filled, frozen, or gone to a competitor's agency. Filter Apollo searches by posting recency and get the first email out within days of the signal appearing — which is also why your ColdRelay mailboxes matter, since they're live in about an hour and need no warmup period before sending.
Typical Signal-Driven BD Benchmarks (Apollo + ColdRelay)
| Metric | Benchmark | Notes |
|---|---|---|
| Inbox placement rate | 95%+ | Dedicated IPs and isolated tenants — table stakes when the pitch references their live job postings |
| Reply rate on hiring-signal outreach | 5-9% | Referencing open roles by name and count consistently beats untriggered client BD lists |
| Signal-to-first-email time | Under 7 days | Weekly saved-search refresh in Apollo; faster is better — posting relevance decays by the week |
| Outbound capacity per mailbox | 2/day | 4 sends/day total per mailbox — 2 outbound + 2 warmup |
| Time to first campaign | Same day | ~60 minutes to provision mailboxes, plus saved-search and sequence setup in Apollo |
What It Costs: Apollo + ColdRelay
Billed per mailbox per month, with volume tiers that drop as you scale (see the table below). DNS, dedicated IPs, and isolated Azure tenants are included — and because signal-driven lists are targeted rather than massive, many firms start with a modest pool and grow it as more specialties come online.
Apollo is a separate subscription covering the contact database, job-posting and hiring signals, saved searches and personas, and sequencing — priced per its current plans and credit tiers.
Apollo's cost buys the signal and the data; ColdRelay's cost buys deliverable sending capacity. They scale on different axes — Apollo with seats and credits, ColdRelay with mailbox count — so a firm can deepen its signal coverage and its sending capacity independently.
| Mailboxes | ColdRelay price / mailbox / month |
|---|---|
| 1–199 | $1.00 |
| 200–999 | $0.85 |
| 1,000–4,999 | $0.70 |
| 5,000+ | $0.55 |
Each mailbox sends 4 emails per day — 2 outbound to prospects + 2 warmup. ColdRelay provisions mailboxes on isolated Azure tenants with dedicated IPs; Apollo handles the sending, sequencing, and inbox rotation on top.
Frequently Asked Questions
Is ColdRelay an alternative to Apollo?
No — they're complementary layers of one stack. Apollo provides the data and the sending software: the contact database, job-posting and hiring signals, saved searches, and sequences. ColdRelay provides the infrastructure those sequences send from: secondary domains, mailboxes, and dedicated IPs on isolated Azure tenants. Staffing firms run both together — Apollo decides who to email and when, ColdRelay makes sure the email lands.
Apollo already includes email sending — why add ColdRelay mailboxes?
Apollo sends from whatever mailboxes you link under Settings → Mailboxes; it doesn't create them or carry their reputation. Linking your firm's primary-domain mailboxes puts the domain you use for contracts, submittals, and payroll at outbound risk. ColdRelay mailboxes on secondary domains isolate that risk completely, ship with DNS (SPF, DKIM, DMARC) pre-configured, and hold 95%+ inbox placement — which is what makes a signal-timed pitch worth sending at all.
How many mailboxes does signal-driven BD actually need?
Fewer than volume outreach. A weekly saved-search refresh across three or four specialties might surface 100-300 new buyer contacts a week, and at 2 outbound sends/day per mailbox (4/day total with 2 warmup), a pool of 25-50 mailboxes covers that with room for multi-step follow-ups. Since ColdRelay supports 100-150 mailboxes per domain, that fits comfortably on a single secondary domain, with headroom to add specialties later.
A saved search just surfaced a hot account — do new mailboxes need warmup before we can reach them?
No. ColdRelay mailboxes have no warmup period before sending — warmup runs continuously as part of each mailbox's 4 sends/day budget (2 outbound + 2 warmup). New mailboxes provision in about an hour on isolated Azure tenants with dedicated IPs, so expanding capacity never costs you the freshness window that makes a job-posting signal valuable.