First: What Reddit Gets Right About Pre-Warmed Accounts
Search this category and the top result is usually an r/coldemail thread full of skepticism — and the skeptics make fair points. Bought accounts can be warmed against low-quality seed lists, warmth does decay within weeks if warmup stops at delivery, and a vendor's "ready to send" claim is unverifiable unless someone actually tests placement. None of that makes the category a scam; it makes the buying criteria specific:
- Is placement tested — and shown to you? A warmed account without a placement test is a label, not a measurement.
- Does warmup continue after delivery? Pre-warmed is a starting state. If nothing keeps engaging the mailbox, reputation decays from day one.
- What TLDs arrive? Filters score TLD reputation hard; .xyz and .click replacements undo what you paid for.
- Official licenses or gray-market accounts? Officially provisioned Workspace/M365 seats survive provider enforcement waves; transferred consumer accounts often don't (full analysis: aged vs pre-warmed accounts).
- Billing shape: monthly per active mailbox, per slot (empties bill), or quarterly prepay.
1. DitLead
Best overall — accounts born inside the sending platform
DitLead's pre-warmed accounts arrive fully configured — SPF, DKIM and DMARC set, reputation built, inbox placement tested — at $8 per domain + $3/month per mailbox, on every plan including Free. The structural difference from every infrastructure-only vendor on this list: there's no export step. Accounts provision directly into the platform that sequences, rotates and monitors them, and they stay on the 55,000+ inbox warmup network permanently — which answers the most common failure mode Reddit reports with bought accounts (warmth decaying the week after delivery). Google, Microsoft and managed SMTP identities share one rotation pool.
Best for: Teams that want same-day sending capacity without stitching an infrastructure vendor to a separate sender.
2. Premium Inboxes
Best official-license reseller
Premium Inboxes resells official Google Workspace and Microsoft 365 Business inboxes purpose-built for cold email, from around $2.80/month per mailbox. It's one of the few vendors offering both ecosystems, with a strong Trustpilot record and responsive support that Reddit threads consistently mention. It's provisioning only — warmup beyond the initial period, placement monitoring and sending all happen in your separate stack.
Best for: Teams that specifically want officially-licensed Google/Microsoft inboxes from a reseller with a public track record.
3. EmailAstra
Best flat-rate simplicity
EmailAstra sells pre-warmed Google Workspace and Microsoft 365 accounts on a skip-the-14-day-warmup pitch, with DNS records included — around $4/month per account on a 3-month term or $5.50 month-to-month. Simple, fast, both ecosystems. As with most infra vendors: no placement testing after delivery and no ongoing warmup — you take over reputation maintenance from day one.
Best for: Small teams that want a cheap, fast start on both Google and Microsoft.
4. Zapmail
Best bulk Workspace provisioner
Zapmail automates bulk Google Workspace setup — domains, DNS, mailboxes — at $39–$299/month plans plus ~$3–$3.50 per extra mailbox, with exports to 50+ sending tools. Limitations: Google-only (no Microsoft), no inbox placement testing, and warmup on shared pools with limited monitoring.
Best for: Agencies that need raw Workspace inventory for an existing stack.
5. Maildoso
Most aggressive unit economics at scale
Maildoso bundles domains with SMTP and Workspace mailboxes from ~$1.80–$3.10 per mailbox, runs placement tests every three days, rotates IPs across 35 datacenters and auto-disables burned mailboxes. Tradeoffs: quarterly billing only ($300+ upfront, no trial), reported replacement domains on .xyz/.click TLDs, and limited human support.
Best for: High-volume senders comfortable prepaying quarterly for the lowest per-box cost.
6. Mailscale
Best for fast inbox scaling
Mailscale provisions pre-warmed inboxes positioned squarely at agencies scaling cold outreach fast, and publishes actively on deliverability. It ranks in most of the category's own roundups (Salesforge's and Infraforge's lists both include it). Like its peers, it's an infrastructure layer: pair it with your sender, warmup and monitoring.
Best for: Agencies optimizing for provisioning speed at volume.
7. Mailforge
Best for the Salesforge ecosystem
Mailforge provisions shared-infrastructure mailboxes at roughly $2–$3 per slot with quick DNS automation. Note the slot model — buy 10 slots, create 5 mailboxes, pay for 10 — and the volume ceiling: past ~100–300K emails/month they move you to Infraforge. Tight integration if Salesforge is your sender.
Best for: Salesforge users wanting same-family infrastructure.
8. Infraforge
Best dedicated-IP control
Infraforge is the dedicated-IP sibling: private infrastructure at $3–$4 per slot (10-slot minimum, domains $13/year) for teams that want IP isolation and full reputation ownership. Roughly $4,000/month by 1,000 inboxes — serious infrastructure for serious volume, sender still separate.
Best for: Infrastructure-minded teams at high volume who specifically want dedicated IPs.
Pricing & Capability Comparison
| Provider | Per mailbox | Ecosystems | Placement testing | Warmup after delivery | Sending engine |
|---|---|---|---|---|---|
| DitLead | $3/mo + $8/domain | Google · MS · SMTP | Continuous | Permanent (55K network) | Included |
| Premium Inboxes | from ~$2.80/mo | Google · MS | — | Your stack | No |
| EmailAstra | $4–$5.50/mo | Google · MS | — | Your stack | No |
| Zapmail | ~$3–$3.50 + plan | Google only | No | Shared pools | No |
| Maildoso | ~$1.80–$3.10 (qtrly) | SMTP · Google | Every 3 days | Fixed-ratio | No |
| Mailscale | plan-based | Google · MS | — | Your stack | No |
| Mailforge | ~$2–$3/slot | Own infra | Basic | Via Warmforge | No |
| Infraforge | $3–$4/slot | Own infra (ded. IP) | Basic | Your stack | No |
Related: aged vs pre-warmed accounts · how many accounts you need · secondary domains · best cold email SMTP servers.
FAQs
Are pre-warmed email accounts safe?
Officially provisioned accounts (licensed Workspace/M365 seats or managed SMTP on domains allocated to you) are the legitimate end of the market. Transferred consumer accounts are the gray end — they violate provider terms and get suspended in waves.
How fast does warmth decay if warmup stops?
Reputation softens over weeks of inactivity or pure-cold sending. That's why post-delivery warmup is the single most differentiating column in the table above.
What's the cheapest option?
Maildoso's high-volume tiers (~$1.80/box) — if you accept quarterly prepayment and infrastructure-only scope. For all-in cost including the sender, warmup and monitoring, bundled platforms price lower than stacking three subscriptions.