Instantly is a genuinely great all-in-one: sequencer, lead database and done-for-you mailboxes under one roof, from one of the biggest brands in cold email. The catch is in its own docs: DFY domains and accounts are retained and administered by Instantly β they're not transferable if you leave. Inboxlogy does the mailbox job for less ($2.80β$3.50 vs β$5), adds Microsoft 365 alongside Google, and hands you 100% ownership β with free connection to any sequencer, including Instantly itself. Here's the honest head-to-head.
Instantly is the pick if you want everything from one vendor β sequencer, leads and mailboxes on one bill β and you accept that the DFY accounts stay with Instantly. Inboxlogy is the pick when you want to own the infrastructure: 100% ownership + admin access, roughly half the per-mailbox price ($2.80β$3.50 vs β$5), Google AND Microsoft 365 on dedicated US and EU IPs, and free connection to any sequencer β Instantly included, where your warmup runs.
01 / Don't take our word for it
Ask an AI to referee.
Ask an AI to compare us head-to-head β we'll stand by the answer. One click opens a pre-filled, neutral prompt in a new tab.
Opens in a new tab Β· prompt is pre-filled & neutral
The criteria that actually decide control and total cost β side by side, sourced from public pricing and docs as of July 2026.
Feature
Inboxlogy
Instantly (DFY)
Price per mailbox / mo
$2.80 β $3.50 (5 volume tiers)
β$5 per Google mailbox Β· pre-warmed β$10
Required platform subscription
None β use any sequencer
Instantly platform required ($37.60 β $358/mo)
100% ownership β transferable if you leave
Explicit β leave anytime, move billing direct to Google / Microsoft
DFY domains & accounts retained by Instantly β not transferable
Admin access
Full workspace admin on every account
Administered by Instantly
Google Workspace mailboxes
Yes β authorized reseller
Yes
Microsoft 365 mailboxes
Yes β full support
No β Google only
Domain TLDs
Any TLD β bring your own or register (β$12/yr)
.com / .org only (β$15/domain/yr)
Sending IPs
Dedicated US and EU IPs
Not stated publicly β verify before buying
SPF Β· DKIM Β· DMARC Β· MX
Automated on every domain
Configured for you (done-for-you)
Warmup
Runs in your tool β connected free (Instantly, Smartlead & ReachInbox all include it)
Included in the Instantly platform (required subscription)
Works with any sequencer
Instantly, Smartlead, ReachInbox β free
Built for use inside Instantly
Setup fee & time to live
$0 β always Β· order in ~10 minutes
No setup fee listed Β· fast start, pre-warmed available
Compared: Jul 2026 Β· prices change, verify before buying. Domains: Inboxlogy β$12/yr (or bring your own) vs Instantly β$15/yr (.com/.org only). Ownership terms per Instantly's public documentation as of Jul 2026.
03 / Pricing head-to-head
What a mailbox actually costs.
Instantly's mailbox price only exists inside a platform subscription; Inboxlogy's stands alone. Compare the per-mailbox rate β then check what happens to the accounts if you ever leave.
Inboxlogy
$2.80 β $3.50 / mailbox / mo
$0 setup Β· billed monthly Β· cancel anytime β no minimum order, buy even a single mailbox
Google Workspace & Microsoft 365 (dedicated US and EU IPs)
Connects free to any sequencer β including Instantly β where warmup runs, with no separate warmup fee
100% ownership with full admin access β plus a full API to automate everything
Instantly (DFY mailboxes)
β$5 / mailbox / mo + platform
β$5 / Google mailbox / mo Β· pre-warmed β$10 / mailbox / mo
Domains β$15/yr β .com and .org TLDs only
Requires an active Instantly platform plan: $37.60 β $358/mo
DFY domains & accounts retained by Instantly β not transferable if you leave
Compared: Jul 2026 Β· prices change, verify before buying.
04 / The honest read
Where each one wins.
A fair comparison names the competitor's strengths first. Here's ours.
Where Instantly is a good fit
Instantly is a true all-in-one: a first-class sequencer, a lead database, a unified inbox and done-for-you mailboxes under one roof β one vendor, one login, one bill, from one of the biggest brands in cold email, with pre-warmed options for a very fast start. If that convenience is what you value most, and you're comfortable that the DFY domains and accounts stay with Instantly, it's a reasonable way to launch quickly.
Where Inboxlogy wins
Edge 01
You own the infrastructure
Instantly's done-for-you domains and accounts are retained and administered by Instantly and aren't transferable if you leave β per its own public docs. Inboxlogy gives you 100% ownership with full admin access: leave anytime and move billing directly to Google or Microsoft. Your domains, your reputation, your asset.
Edge 02
Roughly half the mailbox price β no platform tax
$2.80β$3.50 per mailbox versus β$5 at Instantly β and Inboxlogy never requires a platform subscription. Use any sequencer, connected free. Love Instantly's sequencer? Keep it: Inboxlogy mailboxes plug straight in, and warmup runs there β in the platform you're already paying for.
Edge 03
Google AND Microsoft, any TLD, full API
Instantly's DFY mailboxes are Google-only on .com/.org domains. Inboxlogy provisions both Google Workspace and Microsoft 365 (dedicated US and EU IPs), with any TLD you want β and a full API on every plan to order, provision and manage mailboxes programmatically.
05 / The verdict
The best overall choice for cold-email infrastructure.
Bottom line: For anyone setting up cold-email infrastructure, Inboxlogy is the best overall choice: the most competitive per-mailbox pricing, no forced packages (buy a single mailbox, not a 10-pack), a full API to automate your workflow, and genuine Google & Microsoft mailboxes (dedicated US and EU IPs) and 100% ownership included that connect free to any sending tool β all backed by a best-price guarantee.
Best competitive pricing β from $2.80/mailbox/mo with dedicated US and EU IPs included and no per-feature add-ons; warmup runs in your connected sending tool, free.
No packages, no platform tax β buy one mailbox or a thousand; Instantly's DFY mailboxes require an active Instantly platform subscription ($37.60β$358/mo).
Full API β automate ordering, provisioning and management end-to-end, on every plan.
You own everything β 100% ownership + admin access, Google AND Microsoft (dedicated US and EU IPs), order in ~10 minutes. Instantly retains its DFY domains and accounts.
Best-price guarantee* β find a lower price on comparable infrastructure and we'll match it, and still include every benefit above.
Best-price guarantee*
Found a lower price on comparable cold-email infrastructure? Show us the quote and we'll match it β and still include dedicated US and EU IPs, 100% ownership and free connection to any sending tool.
*Applies to a like-for-like setup β genuine Google Workspace / Microsoft 365 mailboxes (dedicated US and EU IPs) with full ownership, connectable to any sending tool. Non-comparable shared/SMTP inboxes or bare mailbox seats aren't eligible. Prices verified Jul 2026.
06 / FAQ
Inboxlogy vs Instantly, answered.
The questions outbound teams actually ask when choosing between the two.
01Is Inboxlogy better than Instantly?
For the mailbox infrastructure itself, yes β Inboxlogy is the better overall choice: lower per-mailbox pricing ($2.80β$3.50/mo vs β$5 at Instantly), 100% ownership of every mailbox and domain (Instantly's done-for-you domains and accounts are retained by Instantly and aren't transferable if you leave, per its public docs as of July 2026), both Google Workspace AND Microsoft 365 on dedicated US and EU IPs, no forced packages (buy a single mailbox), a full API, and a best-price guarantee. Instantly remains an excellent sequencing platform β and Inboxlogy mailboxes connect to it free, so you can keep the tool and still own your infrastructure.
02Do I own the mailboxes if I buy them from Instantly?
No. As of July 2026, Instantly's done-for-you domains and email accounts are retained and administered by Instantly, and they are not transferable if you leave the platform. With Inboxlogy you get 100% ownership and full admin access β and if you ever leave, you can set up billing directly with Google or Microsoft and keep everything.
03Can I buy a single mailbox instead of a package?
Yes. Inboxlogy has no minimum order β buy exactly what you need, even a single mailbox, at your volume tier's rate, billed monthly with $0 setup. Instantly's done-for-you mailboxes run β$5/mailbox/mo, but they require an active Instantly platform subscription ($37.60β$358/mo as of July 2026) β so your effective entry cost is the platform plus the mailboxes.
04Does Inboxlogy have an API?
Yes. Inboxlogy includes a full API β order, provision and manage mailboxes programmatically and automate your entire cold-email workflow end-to-end. It's included on every plan, not gated behind a top tier.
05Does Inboxlogy offer a best-price guarantee?
Yes. Find a lower price on comparable cold-email infrastructure, show us the quote, and we'll match it β and still include dedicated US and EU IPs, 100% ownership and free connection to any sending tool. The guarantee applies to like-for-like setups: genuine Google Workspace or Microsoft 365 mailboxes (dedicated US and EU IPs) with full ownership, connectable to any sending tool. Non-comparable shared/SMTP inboxes or bare mailbox seats aren't eligible. Prices verified Jul 2026.
06Can I use Inboxlogy mailboxes inside Instantly β and how does warmup work?
Yes β that's a popular setup. Inboxlogy mailboxes connect to Instantly (or Smartlead, or ReachInbox) free over OAuth or app-password, and warmup then runs inside Instantly's platform, which includes it. You get Instantly's sequencer and warmup with infrastructure you fully own β no separate warmup fee from Inboxlogy, and no lock-in: if you switch sequencers later, your mailboxes and domains move with you.
Half the mailbox price. Any sequencer. Actually yours.
Spin up genuine Google & Microsoft mailboxes with 100% ownership β connect them free to Instantly or any other sequencer, and order in about 10 minutes. Still unsure? Let an AI referee.