Every feature engineered for inbox dominance
Mailzop was architected from scratch to solve the deliverability and client-reporting bottlenecks that cold-email agencies hit at scale.
9 Core Modules
Replace your fragmented SaaS stack
Every module below replaces at least one external subscription. The average Mailzop agency saves $200–500/mo on tooling alone.
Compulsory Peer-to-Peer Warm-Up
Zero dead-inbox networks. Every mailbox enrolled in Mailzop actively sends and receives warm-up volume within a closed, highly-reputable pool.
- 100% mandatory participation — no opt-outs
- Realistic organic email threads (50+ B2B templates)
- Automatic spam-folder rescue on each cycle
- Health score visible in real-time dashboard
- 200% daily volume relative to cold-send quota
Native Email Verification Engine
Every lead imported passes a full verification gate — syntax, MX record, SMTP ping, and catch-all detection — before any campaign can fire.
- Syntax, MX, SMTP, and catch-all checks
- Runs automatically on every CSV upload
- Zero external API fees or Bouncify credits
- Results stored per lead for audit trail
- Saves $50–200/mo vs external tools
DeepSeek V4 Pro AI Reply Classification
Incoming responses are instantly triaged into 6 Kanban stages by DeepSeek V4 Pro. Stage-Lock prevents SDR accidental overwrites once AI classifies.
- 6 stages: Interested · Meeting · Objection · OOO · Unsub · Neutral
- Stage-Lock prevents manual override
- Confidence score per classification
- Full audit log of all triage decisions
- Multi-workspace unified Unibox view
White-Label Client Portals
Each client gets a passwordless OTP-secured portal on your domain. Display campaign KPIs and curated reply boards without exposing agency operations.
- OTP magic-link login (10-minute expiry)
- Custom CNAME: leads.youragency.com
- Configurable visible Kanban stages
- Campaign stats, meetings booked, reply feed
- Your brand colors and logo — zero Mailzop watermark (Scale)
Multi-Client Workspace RBAC
Full role-based access control with Owner, Admin, and SDR seats. Unlimited isolated client workspaces on Scale — all managed under a single agency account.
- Owner / Admin / SDR permission tiers
- Per-workspace campaign isolation
- Team invite via email with role assignment
- Audit logs per seat and action
- Custom daily cap per workspace
Real-Time Outbound Webhooks
Sync replies, booked meetings, bounce alerts, and stage changes directly into HubSpot, Slack, Make, or any custom CRM endpoint in real-time.
- Configurable per-workspace webhook URL
- Events: reply · bounce · stage-change · meeting
- SSRF-protected URL validation on save
- Delivery retries with exponential backoff
- Growth tier and above
Dedicated Rust VPS Relay Network
Outbound emails dispatched through a Rust + Tokio edge relay cluster. Nodes in Mumbai, Singapore, Frankfurt, and Virginia. Isolated sender rep per shard.
- Rust + Tokio + Lettre dispatch engine
- Multi-node: Mumbai · Singapore · DE · US-East
- Dedicated shard on Scale tier
- Per-shard sending reputation isolation
- Sub-50ms dispatch latency
Custom Tracking Domains (CTD)
Replace shared tracking links with client-owned tracking domains for open and click events. Automatic SSL certificate management included.
- Your domain: track.client.com
- Auto SSL provisioning via Cloudflare
- Per-workspace CTD isolation
- Up to 20 CTDs on Scale tier
- Open + click tracking with per-lead events
AES-256-GCM Credential Encryption
All mailbox credentials and SMTP secrets are encrypted with AES-256-GCM via Web Crypto API before D1 write. Decrypted in memory only during relay dispatch.
- AES-256-GCM via Web Crypto API
- Zero plaintext credential storage
- Decrypted in-memory only at relay dispatch
- Per-agency encryption key rotation
- SOC 2 aligned data handling
Control Plane
Cloudflare Workers (TypeScript) · D1 SQLite · R2 Storage · KV Cache · AI Gateway
Email Dispatch
Rust + Tokio + Lettre VPS Relay · AES-256-GCM credentials · Multi-node round-robin
Client Portals
React 19 + Vite · OTP magic-link auth · Custom CNAME · White-label per workspace
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