Pre-warmed Google Workspace and Microsoft 365 inboxes ready to send from day one, with EU IPs as an option no other provider in this category offers

Three differences. First: EU IP option. Primeforge and Zapmail are US-only at the IP layer, regardless of what their marketing says about EU presence. We operate EU IPs at scale because we have been running EU email infrastructure since 2008. For senders targeting European prospects, this is the deciding factor. Second: DMARC monitoring and reputation tracking included in base price; both Primeforge and Zapmail sell these as separate products or do not offer them. Third: 17 years of email operations versus 2 to 3 years. The boring stuff (Spamhaus listing handling, Postmaster Tools coordination, edge-case authentication issues) gets handled because we have been doing it long enough to have working playbooks. None of these matter at solo-founder scale; all of them matter at the in-house outbound team scale and up.

Real accounts. Each mailbox is a real Google Workspace or Microsoft 365 account, with your domain attached, with full admin access for you, OAuth-ready for your sequencer. Not a shared SMTP pool. Not a "Workspace-style" SMTP relay. Real Google Workspace and real Microsoft 365 with real DKIM signing and real reputation profiles per mailbox. The licensing fees for Workspace and Microsoft 365 are passthrough on top of our pack price; we do not mark them up. If you cancel our pack, you can transfer the mailboxes to your own Workspace account or let them expire on their native billing cycle. The mailboxes are operationally yours.

If the mailboxes do not deliver within published placement ranges in the first 14 days, we refund the pack price. The published placement ranges are: Google-to-Google sends, 85 to 92 percent inbox placement; Microsoft-to-Microsoft sends, 78 to 88 percent; mixed cross-provider sends, 75 to 85 percent. Below those ranges sustained over 14 days, you get a refund. Above them, you keep the mailboxes and continue paying. The refund is on the pack price only; mailbox license costs (Workspace, Microsoft 365) are passthrough and non-refundable since we paid for them on your behalf. Domain registration costs are also non-refundable since the domains are yours regardless of what happens with our service.

For cold email specifically, the safe limits are 30 to 50 sends per mailbox per day, regardless of what the technical limits suggest. Microsoft 365 has a 10,000 per day technical limit; Google Workspace has 2,000 per day on standard plans. Both numbers are irrelevant for cold email because the receiver-side filters trigger on volume patterns long before the technical limit. Sending 200 per day per mailbox is the surest way to get the mailbox flagged within a week. We document the safe limits in the dashboard and we flag (not throttle) when you exceed them. The decision on actual sending volume is yours; we provide visibility, not control.

You can bring your own domains, register new ones through us, or do a mix. For domains you bring, we configure DNS authentication on whatever DNS provider you use (Cloudflare, Route 53, Squarespace, your own BIND, anything that lets us publish records). For new domains, we register through EU-jurisdiction registrars at €11 to €13 per year. Most customers do a mix: keep their main brand domain elsewhere, register sending domains through us for the operational simplicity. Common pattern is 3 to 5 sending domains per 10 mailboxes (3 mailboxes per domain plus the main brand domain).

No bots. The pool is around 4,000 actively-engaged inboxes that exchange real conversations with each other on a continuous basis. The conversations are real-content exchanges (not synthetic Lorem Ipsum), the engagement patterns include opens, replies, archives, label assignments, search activity, and folder moves. The receiving filters look at all of these signals to determine mailbox legitimacy. A mailbox that has spent 12 to 14 days in this pool has the engagement profile of a real, used mailbox, which is what placement algorithms reward. Synthetic warmup tools that send empty messages between bot accounts are increasingly detected by major mailbox providers; our pool exists because the synthetic approach stopped working around 2023.

OAuth integration with Instantly, Smartlead, Lemlist, Reply.io, Apollo, Salesforge, Outreach, Salesloft, Woodpecker, and any other sequencer that accepts standard Gmail OAuth or Microsoft Graph authentication. SMTP/IMAP integration for sequencers that prefer that path. CSV export for bulk imports into any platform. We do not connect to your sequencer for you; we provide credentials for each mailbox and you configure the connection from your sequencer side. Most customers are running campaigns within 90 minutes of mailbox provisioning.

Yes. Pack changes happen at the next billing cycle. Adding mailboxes mid-cycle is prorated. Removing mailboxes mid-cycle does not refund (you keep the mailboxes for the remainder of the cycle, then they cancel). For agencies whose client books fluctuate, the typical pattern is starting at Pack 30, scaling to Pack 100 when client count grows, and graduating to Custom Volume or our /cold-email-infrastructure product when the operation passes 200 mailboxes.

When a mailbox starts showing reputation problems (sustained complaint rate above threshold, sustained bounce rate above threshold, blacklist listing on a major source), we surface the issue in the dashboard and recommend remediation. For pack customers, the remediation is usually pausing that mailbox while you adjust your list quality or copy. For Pack 100 customers and Custom Volume, we offer mailbox replacement at no charge if the issue is infrastructure-side rather than your-side; the line between the two is usually clear from the data. Most reputation issues are list-quality or copy-quality issues, not infrastructure issues, and the honest answer is that we cannot fix those from our side.

Not allowed. Our acceptable use policy excludes B2C cold email regardless of jurisdiction. In the EU, B2C cold email is largely illegal under GDPR without prior opt-in; in the US, it is technically legal under CAN-SPAM but is widely abused and the receiver filters are tuned aggressively against it. We have made the decision to exclude B2C entirely because the netblock contamination risk is high and the operational pain is not worth the revenue. We accept legitimate B2B outbound, including outbound to small business owners (which can blur the B2C line). We do not accept consumer marketing dressed up as cold email. Applications that look like B2C get rejected during the screening phase.

Pre-warmed inboxes is the right product if you are running 10 to 100 mailboxes, you do your own list building and sequencing, and you want infrastructure without the full agency-tier service layer. Cold email infrastructure is the right product if you are running 100 to 1000+ mailboxes across multiple client portfolios, you need sub-account isolation, and you need the full stack (domains plus DNS plus mailboxes plus SMTP plus warming plus monitoring plus DMARC) under one contract. Most agencies past 5 clients fit better with cold email infrastructure; most in-house teams fit better with pre-warmed inboxes. The discovery call helps figure out which side of the line you are on.

Mailbox suspensions happen for two reasons: receiver-side decisions (your sending behavior triggered a suspension on Google or Microsoft side) or provider-side issues (rare but possible, an IP listing or domain issue affecting the mailbox). For receiver-side suspensions, the remediation is usually 7 to 30 days of inactivity plus appeal to Google or Microsoft; we provide guidance but cannot reverse the suspension on our side. For provider-side suspensions, we restore service or replace the mailbox at no charge. Suspension events are documented in the dashboard with a clear assignment of cause; we do not blame-shift one way or the other.

The standard pattern in cold email is 3 mailboxes per sending domain, sometimes 5 mailboxes per domain at higher volumes. With Pack 30 (30 mailboxes), you typically run 10 domains with 3 mailboxes each. With Pack 100 (100 mailboxes), you typically run 30 to 35 domains. The reason for the spreading: receiver-side filters look at sending volume per domain and treat high-volume domains as more suspicious. Three mailboxes per domain at 30 to 50 sends each per day puts you at 90 to 150 sends per domain per day, which is the safe ceiling for cold email. Going higher per domain triggers reputation flags within a week or two. We provision domains following this pattern by default during onboarding; you can override the ratio if you have specific reasons.

No. Our product ends at the mailbox layer. Replies arrive in the mailbox you provisioned and you read them through whatever interface you prefer: directly in Gmail or Outlook web, in your sequencer (Instantly and Smartlead pull replies via IMAP), in a unified-inbox tool like Mixmax or Front, or in your CRM if it has email integration. We do not aggregate replies, do not provide a unified inbox view, do not manage reply routing or rules. Customers who want unified-inbox features typically use a separate tool layered on top of our mailboxes; we are deliberately out of that scope because it is a different product category and going there would mean competing with tools we have no business competing with.

No, and the reason matters. The pre-warmed value comes from the warming history attached to the mailbox account, which only exists on accounts we have been operating in our pool. A brand-new Google Workspace mailbox created in your existing tenant has zero warming history; it would need to go through 3 to 4 weeks of organic warmup before it sends safely. The whole point of pre-warmed inboxes is skipping that warmup period, which means the mailbox has to come from our pool. Your existing Workspace tenant can be used for the rest of your operation (employee email, internal tools, document collaboration); the cold email mailboxes need to be provisioned through us specifically because of the warming requirement.

Direct Google Workspace pricing is around $8.59 per mailbox per month at standard tier, plus the cost of domains (€10 to €15 per year), plus the operational cost of warming each mailbox manually (3 to 4 weeks of work per mailbox), plus the ongoing operational cost of monitoring and maintaining authentication. For 30 mailboxes, the direct approach runs around $258 per month for licenses plus 10 to 15 hours per month of operational work. Our Pack 30 at €179 per month plus passthrough license costs runs around €330 per month total, with the operational work eliminated. The breakeven calculation depends on your hourly rate; for any operations engineer worth €40 or more per hour, our pricing wins on total cost when you include operational time. For senior outbound operators valuing their own time, the gap is wider.

For a new outbound operation starting fresh: order Pack 30 today, mailboxes live in 90 minutes, sequencer integration done within the day. Week 1: send 30 to 50 emails per mailbox per day, monitor placement, refine list quality. Week 2: maintain volume, watch for reputation issues. Week 3 onwards: stable sending at safe limits. Total: 30 mailboxes × 40 emails per day = 1,200 cold emails per day, or roughly 25,000 to 35,000 prospects contacted per month assuming proper sequencing. For comparison, the same operation built with self-warmed mailboxes would take 4 to 6 weeks before reaching that volume, because you would be warming each mailbox individually. The pre-warmed approach compresses that ramp from weeks to days.

You provide the sender names during onboarding. Each mailbox can have a different sender name (typical pattern: real-sounding first and last names that match a plausible employee at your company), or all mailboxes can share a single sender name (typical for solo founder or single-person outbound). The display name shows up in the recipient inbox as "Sender Name <[email protected]>" exactly the way you configure it. We do not impose generic placeholder names; the choice is yours. For agencies running outbound on behalf of clients, the sender names usually match the client team or a sales persona aligned with the client brand.

Yes, conditionally. For Pack 30 and above, we offer a single test mailbox (€15 one-time charge, refunded against your first month if you sign up) that you can use for 7 days to evaluate placement, sequencer integration, and dashboard usability. The test mailbox runs on the same infrastructure as the production packs and gives you a realistic preview. Test mailboxes are limited to 50 emails per day during the trial. For Pack 10, the trial offering does not exist because the pack itself is small enough to evaluate within the 14-day quality guarantee window without a separate trial step.

Month-to-month for all packs by default. Cancel any time from the dashboard with one click; the cancellation takes effect at the end of the current billing cycle and you keep using the mailboxes until then. No early termination fees, no penalty clauses, no retention games. Annual prepay (15% discount) does have a different structure: cancellation refunds the unused months at the monthly rate, not the discounted annual rate, so the effective cost lands at the same place but you get the unused balance back. The mailboxes themselves remain yours after cancellation if you transfer the Workspace or Microsoft 365 admin to your own account before the cycle ends.