Controlled Cold Outreach & Revenue Pipeline CRM
SiSender unites multi-step threaded email sequences, dual-window mailbox delivery governance, Gemini AI reply classification, and Kanban deal management in one corporate platform.
Inbox placement across Google Workspace & custom SMTP gateways with rolling hourly meters.
Conversion from Interested stage into closed revenue on the 8-stage pipeline board.
Gemini AI intent analysis categorising inbound responses into actionable sentiment tiers.
Automated warmup ramps and cooldown throttles protecting primary sending reputations.
Dashboard
Engineered for Outreach Integrity
Conventional cold email tools burn sender domains and drop leads. SiSender enforces mathematical pacing and pipeline visibility at every touchpoint.
Multi-Step Sequences
Automated follow-up scheduling with wait day intervals. True RFC Message-ID and In-Reply-To thread continuation ensures replies land naturally inside existing conversations.
Explore Sequence Engine →Delivery Governance
Continuous sliding 60-minute and 24-hour rate limiters prevent provider bans. Automated warmup ramp scaling elevates daily send limits safely without manual guesswork.
Inspect Mailbox Controls →Gemini AI Reply Triage
Inbound responses are classified automatically into Interested, Meeting Booked, Objection, or Out of Office sentiment. Cadences pause immediately to eliminate awkward automated follow-ups.
See AI Classification →8-Stage Pipeline Kanban
Directly convert positive replies into closed revenue. Drag-and-drop deal progression across 8 standardized stages with follow-up SLA breach countdown alerts.
View Pipeline Kanban →How a Prospect Becomes a Closed Client
Every prospect moves through an unbroken governance lifecycle, preventing team collisions and lost follow-ups.
List Ingestion & Lockout
Import clean CSV records with custom attribute mapping. SiSender checks domain collision history and locks accounts to prevent multiple reps contacting the same company.
Throttled Sequence Dispatch
Messages are scheduled into timezone-aware sending windows. Mailboxes distribute outbound volume evenly, enforcing rolling hourly and daily caps with custom CNAME tracking.
AI Triage & SLA Follow-Up
Upon reply, sequence steps pause automatically. Gemini categorises sentiment, creates a high-priority SLA task, and reps respond on the original thread to close the deal.
Trusted by Leading B2B Organisations
Fictional demonstration deployment profiles representing commercial international teams using SiSender.
"Before SiSender, our SDR team struggled with intermittent Microsoft 365 throttling. The dual-window hourly caps and automatic cooldown logic eliminated sending bans completely."
"The Gemini reply triage saves our reps two hours every morning. Incoming messages are instantly tagged, sequence steps pause, and our response SLA is under 20 minutes."
Take Complete Control of Your Outreach Pipeline
Deploy multi-step sequences with built-in warmup telemetry, Gemini AI triage, and deal Kanban tracking. No black-box algorithms — pure software control.