About Sendbox
Cold email software built on dedicated IPs and isolated infrastructure, for teams who need primary inbox placement.
releases shipped
every one listed on /updates
months of releases
each with at least one release
deliverability capabilities
bundled on every plan
starting price / mo
no per-seat surcharges
What we do
Sendbox is cold email software built for teams who treat inbox placement as a requirement, not a hope. Every account runs on its own dedicated IP with fully isolated sending infrastructure, backed by AI-powered warmup, mailbox health monitoring, and deliverability tooling that most platforms sell as an add-on. We built Sendbox because too many teams find out their emails are landing in spam only after a campaign has already failed.
Why deliverability first
Most cold email tools compete on how many features they can bundle into a sequencer. We think the sequencer is the easy part. The hard part, the part that actually determines whether your emails get read, is infrastructure: dedicated IPs so your sending reputation is yours alone, isolated environments so another user's mistakes never touch your account, and honest, visible health monitoring instead of a black box. That's what Sendbox is built around.
Who it's for
Agencies running outbound for multiple clients, SDR and GTM teams sending at volume, and recruiters reaching candidates who ignore InMail, anyone whose outreach only works if it actually reaches the inbox.
Our approach to trust
We'd rather tell you plainly what's built, what isn't, and what a plan actually costs than dress up a feature list. Our updates page is public. Our pricing has no hidden per-seat surcharges. If something breaks, we'll say so.
What we've shipped
A few of the releases that shaped the product. The full record lives on the updates page.
Get in touch
Questions about the product, a partnership, or anything else, see our Contact page, or start sending to try Sendbox directly.
Contact usReady to land in primary?
Get your own isolated Sendbox setup running and start sending inside 15 minutes.
Every plan includes a dedicated IP. Cancel whenever you want.
