From Signed Contract to Sending in 48 Hours
When a pay-per-meeting agency closes a new client, the clock starts immediately. The client signed because they were promised meetings — and every day between contract and first send is a day of silence that erodes trust before a single email goes out. Most agencies lose one to two weeks here: buying domains, configuring DNS, waiting out warmup. By the time campaigns launch, the client is already asking what they paid for.
This page covers the speed side of running a setting agency on Instantly: ColdRelay provisions a client's dedicated mailbox pool — domains, DNS, dedicated IPs — in about an hour, and Instantly's unlimited email accounts mean connecting that pool adds nothing to your software bill. Together they collapse client onboarding from weeks to roughly 48 hours: provision the pool day one, finalize list and copy, launch day two. Time-to-first-meeting becomes a number you can put in the sales call — and the number that gets contracts renewed.
Why Setting Agencies Run Instantly on ColdRelay Infrastructure
Instantly's pricing model is unusually friendly to agencies: paid plans include unlimited email accounts, so connecting a new client's 40-mailbox pool costs exactly the same as connecting 4. Your software cost stays flat while your sending capacity scales with clients. The only marginal cost of a new client is the infrastructure itself — which makes the speed and price of that infrastructure the whole onboarding equation.
That's the layer ColdRelay owns. A client's dedicated pool — secondary domains, mailboxes on isolated Azure tenants with dedicated IPs, DNS (SPF, DKIM, DMARC) pre-configured — provisions in about an hour. There's no warmup waiting period before sending; warmup runs continuously as part of each mailbox's 4 sends/day budget (2 outbound + 2 warmup), so the pool is campaign-ready the day it exists. With 95%+ inbox placement, the first sends a new client's prospects ever receive actually arrive.
The pairing is additive, not competitive: ColdRelay is the infrastructure layer, Instantly is the sending and sequencing layer on top. You keep Instantly's campaign builder, A/Z testing, and Unibox — you just feed it client pools that exist within the hour and land from send one.
Visit Instantly →The 48-Hour Client Launch on Instantly
Hour 1: provision the client's pool on ColdRelay
The moment the contract is signed, order the client's dedicated pool — fresh secondary domains themed to the client, never their primary domain. ColdRelay supports 100-150 mailboxes per domain, so a 30-60 mailbox starter pool fits on a single domain. Everything provisions on isolated Azure tenants with dedicated IPs, DNS pre-configured, in about an hour. While it provisions, your team works the list and copy in parallel.
Bulk-import the pool into Instantly via CSV
Export the mailbox credentials from the ColdRelay dashboard and use Instantly's bulk SMTP/IMAP import under Email Accounts → Add New → Bulk Import. A 50-mailbox pool connects in one upload — and because Instantly includes unlimited email accounts on paid plans, the import adds zero to your subscription. Client number twelve costs the same software dollars as client number one.
Set sending limits to the 4/day budget
In each account's settings, set the daily sending limit to 2 outbound emails per day — matching ColdRelay's per-mailbox budget of 4 sends/day total, split 2 outbound + 2 warmup. Skip enabling Instantly's warmup on these accounts; ColdRelay's continuous warmup already occupies the other half of the budget, and stacking a second warmup spends capacity you want going to prospects.
Build the campaign with A/Z variants from day one
Create the client's campaign in Instantly's campaign builder, attach the full pool, and load 3-4 subject and opener variants using A/Z testing. A brand-new client means zero message-market data — testing variants from the first send means that by the end of week one you know which angle books, instead of discovering in week four that you bet everything on the wrong one.
Launch by hour 48 and watch Unibox for the first booked meeting
With list, copy, and pool connected, launch inside two days of signature. Work positive replies in Unibox the hour they arrive — the first booked meeting is the moment a skeptical new client becomes a renewing one, and Instantly's campaign analytics give you the open, reply, and positive-reply numbers to send a credible day-five update before they ask for one.
The Appointment Setter's Instantly Playbook
Sell the launch speed in the sales call
Most setting agencies pitch reply rates and meeting volume — same as every competitor. Pitch the calendar instead: 'You sign Tuesday, emails go out Thursday, first meetings typically land within two weeks.' Because ColdRelay provisions a dedicated pool in about an hour and the pool sends without a warmup waiting period, that's a promise you can keep — and one the agency quoting a three-week ramp can't match.
Make time-to-first-meeting your contract-closing metric
Track days-from-signature-to-first-booked-meeting for every client and put your median in your proposal. A prospect deciding between agencies can't verify your reply rates, but 'median 11 days to first booked meeting across our last 20 clients' is concrete, checkable, and directly answers the question they're actually asking: when do I see something for my money?
Let unlimited accounts change how you scope pools
On per-seat sending tools, agencies under-provision pools to control software costs and then scramble when a client wants more volume. Instantly removes that constraint: accounts are unlimited, so size each pool to the client's meeting target plus headroom from day one. The marginal cost of extra capacity is only the ColdRelay mailboxes — and total mailbox count across all clients is what moves you down the volume tiers.
Run the first two weeks as a paid experiment, not a verdict
Structure week one and two around Instantly's A/Z results: kill losing variants every 48 hours, promote winners, and narrate it to the client — 'variant C is replying at 2x, shifting all volume there.' A new client who watches you optimize in real time judges you on trajectory; one who hears nothing for three weeks judges you on a single early number that's still stabilizing.
Typical Appointment-Setting Benchmarks (Instantly + ColdRelay)
| Metric | Benchmark | Notes |
|---|---|---|
| Contract signed to first send | 24-48 hours | ~60 minutes for ColdRelay to provision the pool; the rest is list and copy work |
| Time to first booked meeting | 7-14 days | The metric that renews contracts; faster with A/Z variants live from send one |
| Inbox placement rate | 95%+ | Dedicated IPs and isolated tenants — first impressions with a new client's prospects |
| Outbound capacity per mailbox | 2/day | 4 sends/day total per mailbox — 2 outbound + 2 warmup |
| Added software cost per new client pool | $0 | Instantly's paid plans include unlimited email accounts; only infrastructure scales |
What It Costs: Instantly + ColdRelay
You pay per mailbox per month for the infrastructure, with volume tiers that drop as you scale (see the table below). Because pools are sized per client and stack across your roster, each new client pushes your total mailbox count toward better rates. DNS, dedicated IPs, and isolated Azure tenants are included.
Instantly is billed separately on its own subscription for campaigns, A/Z testing, Unibox, and analytics — and paid plans include unlimited email accounts, so connecting another client's pool doesn't raise the bill.
The structure is unusually clean for an agency: software cost is flat regardless of client count, and infrastructure cost is linear in mailboxes with tiers that improve as you grow. That makes the cost of onboarding client number ten knowable to the dollar before you quote them — and the 48-hour launch means the spend starts producing meetings almost immediately instead of sitting idle through a setup phase.
| 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; Instantly handles the sending, sequencing, and inbox rotation on top.
Frequently Asked Questions
Is ColdRelay a competitor to Instantly?
No — they're complementary layers of the same stack. Instantly is the sending and sequencing layer: campaigns, A/Z testing, Unibox, analytics. ColdRelay is the infrastructure layer underneath: the secondary domains, mailboxes, and dedicated IPs Instantly sends from. A setting agency uses both together — ColdRelay provisions the client's pool, Instantly runs the campaigns on it.
Instantly includes unlimited email accounts — does that mean unlimited sending?
No. Unlimited accounts means connecting more mailboxes never raises your Instantly bill — but each ColdRelay mailbox still sends 4 emails/day total, split 2 outbound + 2 warmup. Sending capacity comes from how many mailboxes you provision, not from the software. A 50-mailbox pool gives a client 100 outbound sends/day; want more, add mailboxes on ColdRelay.
How fast can a newly signed client actually be live?
The infrastructure is ready in about an hour — domains, mailboxes on isolated Azure tenants with dedicated IPs, and DNS (SPF, DKIM, DMARC) all pre-configured. There's no warmup waiting period before sending, so the practical timeline is 24-48 hours from signature to first send, with list building and copy as the long poles, not the infrastructure.
Should I turn on Instantly's warmup for ColdRelay mailboxes?
Generally no. ColdRelay mailboxes run continuous warmup as part of their daily budget — 2 warmup sends alongside the 2 outbound, 4/day total. Layering Instantly's warmup on top duplicates work and eats into the budget. Point Instantly at outbound sending only and let the infrastructure layer handle warmup.