Email Infrastructure,
Built for Developers and Growing Businesses.
Manage your sending domains, configure email authentication, and integrate email delivery through a unified platform. Available capabilities depend on your account configuration and the features currently enabled.
Under active development • Automated SPF • DKIM 2048-bit • DMARC Policy Guidance
Organization Console
Domain Settings
Authentication Checklist
Authorizes designated sending relays for your domain:
3 regional CNAME tokens for cryptographic signing:
Specifies recipient mailbox handling instructions:
Transactional Template Preview
Account VerificationHello,
Please confirm your email address to complete your account setup. This link will remain active for 24 hours.
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Engineered for Strict Standards and Deliverability
PlusMail unites human-friendly mailbox workflows with developer-grade transactional delivery, backed by strict cryptographic authentication.
Transactional Delivery Engine
Engineered for mission-critical notifications via Amazon SES. Sending pipeline is verified in AWS Sandbox; production-scale volume access is currently under review.
- Amazon SES v2 API Integration
- AWS SigV4 Authentication
- Sandbox Verified & Prod Review Pending
Automated DNS Authentication
Instant cryptographic verification for your custom domain. Automatically creates and verifies SPF, 3-token 2048-bit DKIM, and strict DMARC policies.
- Automated Cloudflare DNS Provisioning
- 2048-bit DKIM Key Pairs
- DMARC Alignment Enforcement
Reputation & Suppression Engine
Automated suppression architecture designed to ingest SES SNS feedback notifications, immediately quarantining hard bounces and spam complaints.
- SES Webhook / SNS Feedback Processing
- Automatic Hard-Bounce Suppression
- Abuse & Complaint Quarantine
Modern Web Console
High-density, responsive control panel for managing organizational mailboxes, custom domain routing, forwarding rules, and user roles.
- Subdomain separation (dash.pluskode.com)
- Role-based access (Owner, Admin, Member)
- Cloudflare Pages edge deployment
Inbound Routing & Storage
Flexible inbound message routing powered by Cloudflare Email Workers and high-durability multi-tenant Cloudflare R2 object storage.
- Real-time JSON webhook dispatch
- MIME parsing & attachment storage
- Catch-all & regex alias filtering
Developer APIs & SDKs
Standardized REST API and authenticated outbound SMTP endpoint for programmatic dispatch from Node.js, Go, Python, and edge runtimes.
- HMAC API token authentication
- OpenAPI / Swagger specifications
- Idempotency keys on send requests
Designed Exclusively for Legitimate, Requested Communication
PlusMail's transactional infrastructure is engineered for user-triggered events. We prohibit unsolicited marketing, purchased lists, and unverified bulk campaigns.
Account Verification & OTP
Reliable dispatch of time-sensitive verification tokens, magic login links, and email address ownership verification.
Security & Audit Notices
Automated notifications for new device sign-ins, password resets, API token changes, and account security notices.
Transactional Receipts
Order confirmations, payment receipts, subscription billing receipts, and service lifecycle communications requested by users.
Professional Workflows
Direct 1-on-1 customer support correspondence and team communication from verified organizational domains.
Three Steps to Cryptographically Verified Email
We streamline domain authentication so you can establish trust with major mailbox providers within minutes.
Connect Your Domain
Register your sending domain in the PlusMail management console. We immediately query your current DNS records to prevent conflicts.
Automatic DNS Provisioning
PlusMail provisions 3 DKIM CNAME records, the SPF authorization TXT entry, and a DMARC policy record. Verification completes automatically.
Send & Monitor Delivery
Dispatch authenticated transactional emails with peace of mind. Monitor real-time delivery logs, bounce events, and complaint metrics.
Frequently Asked Questions
Learn about PlusMail's operational model, delivery infrastructure, and technical requirements.
What is PlusMail and what problem does it solve?
PlusMail is a modern email infrastructure platform designed to bridge the gap between user-friendly mailbox management and high-deliverability transactional email delivery. It allows businesses and developers to connect custom domains, automatically provision cryptographic DNS records (SPF, DKIM, DMARC), and manage communications from an integrated interface.
How does PlusMail handle transactional email delivery?
PlusMail is architected to utilize Amazon Simple Email Service (SES) as its high-scale cloud delivery engine for critical application emails such as verification OTPs, password reset requests, and system alerts. Cloudflare handles inbound mail routing, while outgoing email relies on validated sending identities with DKIM key signing.
How are domain authentication records verified?
When you add a domain, PlusMail automatically generates the required DNS records (SPF TXT records, 2048-bit DKIM CNAMEs, and DMARC policies). Through our automated DNS management integration, these records are provisioned and verified in real time to ensure strict alignment before any sending occurs.
What is the current availability status of PlusMail?
PlusMail is currently under active engineering preview. We are actively finalizing our email routing pipeline and security compliance controls before public general availability. You can request early developer access through our contact page.
Ready for Honest, Developer-Grade Email?
Join our developer preview. Connect with our engineering team to evaluate our transactional delivery pipeline and custom domain DNS automation.