Connected Ecosystem

Real Integrations · Verified in Code

SiSender connects natively with your existing email infrastructure, AI providers, and billing engines. We advertise only real, fully implemented integrations — zero hypothetical partner badges.

Google Workspace

Native OAuth 2.0

Direct API integration with Google Workspace and Gmail accounts. Automatic token rotation with zero password exposure. Supports rolling 60-minute burst rate protection and automated warmup scaling.

Scopes: Gmail Send, Gmail Readonly (for thread reply detection)

Custom SMTP / IMAP

TLS 1.3 Encryption

Connect any standard mail server: Microsoft 365, Amazon SES, Postmark, SendGrid, or private on-premise Postfix/Exim servers. Full support for STARTTLS and custom port routing (587, 465, 993).

Protocols: RFC 5321 (SMTP), RFC 3501 (IMAP)

Google Gemini AI

Gemini 1.5 Flash

Automated cognitive classification of inbound email replies into 5 operational tiers (Interested, Meeting Booked, Objection, Neutral, Out of Office). Sub-second inference latency.

Latency: < 850ms average classification turnaround

Stripe & Razorpay

Payment Gateways

Enterprise B2B checkout engine supporting international credit cards, SEPA, and Indian payment gateways with automated webhook listeners and discount voucher calculation.

Webhooks: CSRF-exempt cryptographic verification

Developer REST API

JSON · Bearer

Programmatic endpoints for lead import, campaign enrollment, and pipeline deal progression. Keys are secured via SHA-256 one-way hashing with custom capability scopes.

Endpoints: /api/v1/prospects, /api/v1/campaigns

DNS CNAME Tracking

Custom Host

Dedicated open and click tracking domains operating on your own corporate subdomain (e.g. track.yourcompany.co.uk). Automatic SSL certificate handshake verification.

Verification: Edge host DNS resolution check

Console Gateways

Inspect the Live Integrations Hub

https://app.sisender.com/outreach/channels

Integrations Active

Connected Gateways & Integrations

Native Google OAuth · SMTP / IMAP · Google Gemini AI · Stripe & Razorpay · Webhooks

TLS 1.3 · OAuth 2.0 PKCE

Google Workspace

Connected

Direct API & OAuth 2.0 delivery for Google Workspace and Gmail accounts with automated token rotation and error recovery.

4 accounts active · 99.8% inbox rate

OAuth 2.0 Scopes Valid

Custom SMTP / IMAP

Connected

Enterprise mail server connectivity for Microsoft 365, Amazon SES, Postmark, and self-hosted Postfix/Exim instances with STARTTLS.

2 accounts active · Port 587 TLS

RFC 5322 Compliant

Google Gemini AI

Active

Contextual intent analysis categorising inbound responses into Interested, Meeting, Objection, or Out of Office sentiment tiers.

Gemini 1.5 Flash · 146 classifications (30d)

Response Time < 850ms

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