We build outreach software that knows when not to send
Every reply has a next step. Engage exists so the replies your outreach earns turn into meetings, and the mailboxes you send from stay healthy.
Engage in one paragraph
Engage is a cold email outreach platform for B2B sales teams, lead-generation agencies and recruiting firms. It connects your Gmail and Google Workspace mailboxes, sends multi-step email sequences inside per-mailbox daily and hourly limits and each lead's local business hours, sorts every reply with AI, and tracks each lead on a pipeline from first email to client.
Why we built it
Most cold email problems are not about sending more. They are about sending at the wrong time, from one overworked mailbox, to people who already said no, and then losing the replies that do come back in a busy inbox. Engage puts the checks before every send and puts every reply, and every lead, where the team can act on it.
What we believe
- Your mailboxes, your reputation. Engage sends through your own Google Workspace mailboxes, inside limits you set, and never through a shared pool.
- Respect the recipient. Local business hours, company lockouts, an unsubscribe link in every email, and a do-not-contact list checked before every send.
- No reply left behind. AI sorts replies, but every reply stays visible to a person, whatever the label.
- Honest claims. We do not promise inbox placement, and we tell you what Engage does not do.
Key facts
- Product: Engage, a web-based cold email outreach platform.
- For: B2B sales teams, lead-generation agencies, recruiting and staffing firms.
- Mailboxes: Gmail and Google Workspace, connected with Google sign-in.
- AI: reply labelling (Positive, OOO, Negative, Neutral), copy rewrites and A/B variants, using Gemini by default or your own Gemini, Anthropic or OpenAI-compatible key.
- Website: site.sisender.com
See Engage with your own sending setup
Book a short demo. We will connect a mailbox, check your timing and walk through replies and the pipeline with you.