The core cold email workflow — Google Workspace and Microsoft 365 inboxes, campaigns, inbox rotation, warmup, AI personalization, reply tracking, deliverability controls — without premium SaaS pricing.
Six steps from connecting your first inbox to launching your first campaign. About 25 minutes to first send.
Google Workspace or Microsoft 365 OAuth. No SMTP setup, no purchased mailboxes.
Validate SPF/DKIM/DMARC, ramp sending volume, monitor domain health.
Step-based sequences with templates, A/B copy, and AI-assisted variants.
Spread volume across a campaign sending pool with conservative per-inbox caps.
Unified inbox, thread assignment, reply tags, auto-stop on response.
Sends, replies, bounces, unsubscribes, warmup, inbox & domain health.
MailSequence is built around real business inboxes, conservative limits, and explicit deliverability controls. Better fit for teams that care about reputation than for users looking for cheap SMTP volume.
| Provider | Connect | Warmup | Status |
|---|---|---|---|
| Google Workspace | OAuth | Native | Supported |
| Microsoft 365 | OAuth | Native | Supported |
| Free Gmail / Outlook | — | — | Not supported |
| Disposable SMTP | — | — | Not supported |
| Purchased mailbox bundles | — | — | Not supported |
Recreate the sequences your team already runs in Instantly or Smartlead.
Rotate connected inboxes across a campaign with controlled daily volume.
Ramp inbox activity gradually before asking a mailbox to carry real volume.
Review replies across connected inboxes without jumping between accounts.
Credits for generation, personalization, rewrites, and reply assistance.
Track health signals across campaigns, inboxes, domains, warmup, and placement.
Credits power sequence generation, first-line personalization, copy rewrites, follow-up variants, reply classification, and response drafts. Higher plans include larger monthly pools, and referrals reward real activated users.
No free inboxes. No disposable SMTP blasting. Just the core cold email workflow at a lower monthly software cost.
Bring your inboxes, lead list, campaign copy, unsubscribe list, and sending limits. We'll guide you through recreating the first campaign, setting safe limits, enabling warmup, and launching without unnecessary downtime.
Rewards unlock as invited users verify a business email, connect a mailbox, start paid, and remain active. No free Gmail. No self-referrals.
For teams using the core cold email workflow, it is a lower-cost replacement. If you need a mature all-in-one outbound operating system with every advanced feature, Instantly or Smartlead may still be a better fit.
No. You bring domains and Google Workspace or Microsoft 365 inboxes. MailSequence helps you connect, warm up, rotate, and monitor them.
No. MailSequence is built for real business inboxes on owned domains.
No traditional free trial. Cold email requires domains, inboxes, DNS, warmup, and list quality before the product is useful — we start with paid setup instead.
AI is best-effort and non-blocking. Core sending and workflow operations continue even if an AI provider is unavailable.
OAuth tokens are encrypted at rest. We never store mailbox passwords. SOC 2 Type II audit in progress.
Start paid setup, recreate your first campaign, and have your team sending on real inboxes within an hour.