Platform-Intelligence Targeting, Run Through Apollo
Most SEO agency outbound fails before the first word is written, because the list is wrong: a generic scrape of 'marketing managers at companies with websites' that no copy can save. Apollo changes the problem you're solving. Its technology filters tell you what CMS a company actually runs — Shopify, WordPress, Webflow — which means an agency can build lists of companies on the exact platform it specializes in, cross those with revenue filters that screen for retainer-sized budgets, and layer hiring signals on top to catch companies actively investing in content.
What Apollo doesn't provide is sending infrastructure built for cold volume. That's ColdRelay: the secondary domains, mailboxes, and dedicated IPs your Apollo sequences actually send from. This guide covers the full targeting-first motion — building platform-segmented searches in Apollo, provisioning infrastructure on ColdRelay, linking the two, and writing sequences where the list itself does most of the persuading.
Why Run Apollo on ColdRelay Infrastructure
Apollo is a database and a sequencer in one — you find the prospects and send to them from the same platform. But the mailboxes Apollo sends from are whatever you link under Settings → Mailboxes, and that's where most agencies cut the corner that costs them the campaign: a handful of Google Workspace seats on the agency's own domain, sending cold volume next to client reporting and link outreach.
ColdRelay replaces that corner-cut with purpose-built infrastructure. You provision mailboxes on secondary domains, hosted on isolated Azure tenants with dedicated IPs, fully DNS-configured (SPF, DKIM, DMARC) and ready in about an hour. There's no warmup waiting period before you can send — warmup runs continuously as part of each mailbox's 4 sends/day budget (2 outbound + 2 warmup) — and placement holds at 95%+. With 100-150 mailboxes supported per domain, one ColdRelay order covers what a multi-segment Apollo motion needs.
The pairing is additive, not competitive: Apollo is the data and sequencing layer — personas, technographic searches, multichannel sequences. ColdRelay is the infrastructure layer those sequences send from. Sharp targeting deserves mailboxes that actually reach the inbox it found.
Visit Apollo →Connecting ColdRelay Mailboxes to Apollo
Build platform-segmented searches with Apollo's technology filters
In Apollo's people search, open the Technologies filter and build one search per platform you have a real track record on: Shopify for e-commerce SEO, WordPress for content-led plays, Webflow for funded startups. Stack a revenue filter on each — $5M+ annual revenue is a reasonable floor for companies that can sustain a monthly retainer — plus title filters for the owner of organic (Head of Marketing, E-commerce Director, founder at smaller companies). Save each as a Saved Search so the list refreshes as new companies match.
Layer the content-hire timing signal
Within each saved search, use Apollo's job postings filter to flag companies currently hiring for content roles — content writer, content marketing manager, SEO specialist. A company paying for writers has already decided organic is worth investing in; your email arrives during the budget conversation instead of trying to start one. Save these as separate, higher-priority Saved Searches and create a Saved Persona per platform segment so new matches flow in pre-qualified.
Provision ColdRelay mailboxes sized to your segments
Order mailboxes on ColdRelay against a secondary domain — never your agency's primary. A three-segment motion (Shopify, WordPress, Webflow) running 60-90 outbound sends/day needs 30-45 mailboxes at 2 outbound sends/day each; each mailbox's budget is 4 sends/day total, split 2 outbound + 2 warmup. ColdRelay supports 100-150 mailboxes per domain, so one domain covers all segments. Everything provisions on isolated Azure tenants with dedicated IPs in about an hour, with SPF, DKIM, and DMARC pre-configured.
Link the mailboxes under Settings → Mailboxes and cap send limits
In Apollo, go to Settings → Mailboxes and link each ColdRelay mailbox via SMTP/IMAP using the credentials exported from the ColdRelay dashboard. Then set each mailbox's per-mailbox daily send limit in Apollo to 2 emails — mirroring the ColdRelay budget of 4 sends/day total per mailbox (2 outbound + 2 warmup). Leave warmup to ColdRelay; it already runs continuously, and a second warmup layer spends sends without improving placement.
Build one sequence per platform segment with email, call, and LinkedIn steps
Create a separate Apollo sequence per Saved Persona — the Shopify sequence talks about collection pages and faceted navigation, the WordPress sequence about content decay and internal linking, the Webflow sequence about technical foundations for a site that's about to scale. Use Apollo's multichannel steps: two emails, then a LinkedIn connection touch, then a call task for prospects who opened twice but didn't reply. Enroll contacts from each Saved Search into its matching sequence and let Apollo rotate sends across the linked ColdRelay mailboxes.
The SEO Agency Apollo Playbook
Let the technographic filter write your first line
When the list is built on a Technologies filter, the opener gets specific for free: every prospect in the Shopify segment genuinely runs Shopify, so 'most Shopify stores we work with lose category-page rankings to unmanaged faceted URLs' is true and relevant for the entire list without per-prospect research. The platform is the personalization. Pick the one or two CMS ecosystems where you have real results and depth — a credible Shopify specialist beats a generic 'we do SEO' agency in every inbox it reaches.
Filter for retainer-sized budgets before you write a word
The most expensive reply an agency can get is an enthusiastic yes from a company that can't afford the engagement. Use Apollo's revenue and employee-count filters as a hard gate — for a meaningful monthly retainer, $5M+ revenue or 20+ employees is a workable floor, tuned to your pricing. Qualifying at the list-building stage means every conversation that starts can actually close, and your reply rate stops being inflated by deals that die at the proposal.
Treat content hires as a buying signal, not a competitor
Agencies often skip companies hiring in-house content people, assuming the budget is spoken for. It's the opposite signal: a company posting for a content writer has committed budget to organic and is about to discover that writers without SEO direction produce traffic-free content. Sequence these companies with that exact frame — 'you're investing in content; here's how to make sure it ranks' — and you arrive as the multiplier on a decision they already made. Apollo's job postings filter makes this a standing segment instead of a lucky catch.
Use the call and LinkedIn steps where SEO skepticism runs highest
SEO buyers are the most cold-email-burned audience in B2B marketing — every decision-maker on your list gets daily 'rank #1 on Google' spam. A pure email cadence fights that noise on its home turf. Apollo's sequence steps let you break pattern: a LinkedIn connection between emails puts a real face and an agency with visible work behind the message, and a call task triggered by repeat opens reaches the prospect who's interested but won't reply in writing. The multichannel touch is what separates a specialist from the spam they're braced for.
Typical SEO Agency Targeting Benchmarks (Apollo + ColdRelay)
| Metric | Benchmark | Notes |
|---|---|---|
| Inbox placement rate | 95%+ | Dedicated IPs and isolated tenants outperform shared Google/Microsoft pools |
| Reply rate on platform-segmented lists | 4-8% | Technographic + revenue + hiring-signal filters beat generic title scrapes by 2-3x |
| Qualified-conversation rate (replies that fit retainer budget) | 60-80% | Revenue filtering at list-build time screens out can't-afford replies upfront |
| Outbound capacity per mailbox | 2/day | 4 sends/day total per mailbox — 2 outbound + 2 warmup |
| Time to first sequence | Same day | ~60 minutes to provision on ColdRelay, plus Saved Search and sequence setup in Apollo |
What It Costs: Apollo + ColdRelay
You pay per mailbox per month for the infrastructure, with volume tiers that drop as you scale (see the table below). DNS, dedicated IPs, and isolated Azure tenants are included.
Apollo is billed separately on its own per-seat subscription, which covers the contact database, technographic and signal filters, Saved Personas and Searches, and the sequence engine — priced per its current plans, with export credits varying by tier.
Apollo's cost scales with seats and data credits; infrastructure cost scales with mailbox count. For a targeting-first motion the split is clean — Apollo decides who gets the email and what it says, ColdRelay decides whether it lands. Underspending on either side wastes the other.
| 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
Does ColdRelay replace Apollo?
No — they're complementary layers, not competitors. Apollo handles the contact database, technographic and hiring-signal filters, Saved Personas and Searches, and multichannel sequencing. ColdRelay provides the underlying domains, mailboxes, and dedicated IPs that Apollo's sequences send from. You use them together: infrastructure below, data and sending software on top.
Can't I just send from my agency's Google Workspace mailboxes linked to Apollo?
You can, but you're betting your agency's primary domain on it. Cold volume from the domain you use for client reporting, link outreach, and referrals puts all of that at reputation risk. ColdRelay mailboxes live on separate secondary domains, on isolated Azure tenants with dedicated IPs — link those under Settings → Mailboxes in Apollo and your primary domain never touches a cold send.
Should I turn on a warmup tool for ColdRelay mailboxes linked to Apollo?
No. ColdRelay mailboxes warm continuously as part of their built-in budget — each mailbox sends 4 emails/day total, split 2 outbound + 2 warmup. There's no waiting period before sequences can start, and stacking another warmup layer on top spends sends without improving placement. Set Apollo's per-mailbox daily send limit to 2 and let ColdRelay handle the rest.
How reliable are Apollo's technology filters for building CMS-segmented lists?
Reliable enough to segment on, not perfect. Technographic detection occasionally lags a replatform or misses a heavily customized install, so expect a small percentage of mismatches per list. The practical fix is spot-checking a sample of each Saved Search before enrolling it, and writing openers that reference the platform's typical problems rather than claiming certainty about their stack. Even at 90-95% accuracy, a platform-segmented list dramatically outperforms a generic title scrape.