Q1 2026 changelog: what shipped
Pre-Warmed marketplace, MagicLee wizard, daily blacklist monitoring across six domain blacklists, and infrastructure health score.
The InboxLee TeamQuarterly recap of what landed in Q1 2026. Skipping the small fixes - these are the changes operators care about.
Shipped
- Pre-Warmed mailbox marketplace - aged domains, day-one sending
- MagicLee 9-step provisioning wizard
- Blacklist monitoring across six domain blacklists, daily polled
- Infrastructure health score per mailbox and per domain
- Smartlead, Instantly, Lemlist native API integrations
- Monthly subscription mailbox billing with auto-renewal
- Outbound webhooks for mailbox lifecycle events
- InboxLee-managed DNS as the default for newly provisioned domains
In progress
Microsoft 365 mailbox provisioning is in private testing. Lee SMTP (dedicated IP service for 200k+ senders) is in early access. Both targeted for Q2 2026 general availability.
See the live roadmap at /roadmap - what is shipped, what is in progress, what is on the radar.
See roadmapFrequently asked
What did InboxLee ship in Q1 2026?
Eight major releases: Pre-Warmed mailbox marketplace (aged domains for day-one sending), MagicLee 9-step provisioning wizard, blacklist monitoring across six domain blacklists (daily polled), per-mailbox infrastructure health score, native API integrations with Smartlead/Instantly/Lemlist, monthly subscription mailbox billing, outbound webhooks for mailbox lifecycle events, and InboxLee-managed DNS as the default for newly provisioned domains.
When will Microsoft 365 mailbox provisioning be generally available on InboxLee?
Q2 2026 target for general availability. Currently in private testing with a small cohort. The Microsoft 365 provisioning pipeline goes through the official CSP partner program with the same automated DNS configuration (MX, SPF, DKIM, DMARC) and the same partner pricing as Google Workspace at $2.50/seat/month.
When will Lee SMTP (dedicated IP service) be generally available?
Q2 2026 target for general availability. Currently in early access for senders above 200,000 emails per month. Microsoft JMRP and Yahoo FBL registered automatically on every dedicated IP, with phased IP warming included.
Where can I see the live InboxLee roadmap?
At inboxlee.com/roadmap. The roadmap is publicly maintained with what is shipped (live in production), what is in progress (private testing or early access), and what is on the radar (planned but not started). Customers can vote on roadmap items to surface what matters most to the buyer base.
The InboxLee dispatch · weekly
Deliverability research, postmortems, and product ships. No filler.