# Mailofly

> Mailofly is modern email infrastructure for developers and fast-scaling product teams. It combines high-deliverability transactional email delivery (REST API, SMTP, SDKs), outbound marketing campaigns with visual sequence builders, custom business mailboxes (user@yourdomain.com), zero-DNS Google Workspace/Gmail API sender identities, real-time email list validation, and native AI coding agent tools via the Model Context Protocol (MCP).

Website: https://mailofly.com  
Documentation: https://docs.mailofly.com  
API Base: https://api.mailofly.com (or https://mailofly.com/api/v1)  
Dashboard: https://app.mailofly.com  
Webmail Portal: https://mail.mailofly.com  

---

## Table of Contents
- [What is Mailofly?](#what-is-mailofly)
- [Key Architectural Highlights](#key-architectural-highlights)
- [Core Features](#core-features)
  - [Studio & Sender Identities](#1-studio--sender-identities)
  - [Analytics & Delivery Insights](#2-analytics--delivery-insights)
  - [Customer Lifecycle & Growth](#3-customer-lifecycle--growth)
  - [Infrastructure, Reliability & AI](#4-infrastructure-reliability--ai)
- [Hosted Business Mailboxes (Inboxes & Webmail)](#hosted-business-mailboxes-inboxes--webmail)
- [Developer Documentation & Guides](#developer-documentation--guides)
- [REST API Reference](#rest-api-reference)
- [Official SDKs & Libraries](#official-sdks--libraries)
- [Mailofly AI & Model Context Protocol (MCP)](#mailofly-ai--model-context-protocol-mcp)
- [Code Examples](#code-examples)
- [Free Deliverability & DNS Tools](#free-deliverability--dns-tools)
- [Competitor Comparisons](#competitor-comparisons)
- [Platform & Application Pages](#platform--application-pages)
- [Company, Resources & Legal](#company-resources--legal)

---

## What is Mailofly?

Mailofly solves the modern email delivery puzzle by unifying transactional and marketing workflows on top of resilient, multi-provider infrastructure.

Traditional email services force teams to choose between complex DNS setups, rigid API-only limitations, or expensive per-seat marketing tools. Mailofly removes this friction:
1. **Developer-First REST API & SMTP**: Dispatch notifications, receipts, and OTPs in under 200ms using idiomatic SDKs or standard SMTP.
2. **Zero-DNS Google Identities**: Connect Google Workspace and Gmail inboxes via OAuth 2.0 to dispatch high-trust transactional emails instantly through Google's trusted infrastructure without touching DNS records.
3. **Email List Validation**: Verify recipient syntax and live MX records to reduce bounce rates and preserve domain reputation.
4. **Custom Domain Mailboxes**: Provision branded email inboxes (`user@yourdomain.com`) with custom storage quotas and full IMAP/SMTP client support without paying $6-$18/user/month on legacy office suites.
5. **Campaigns & Visual Sequences**: Build multi-step onboarding sequences, behavioral drip flows, and scheduled broadcasts with Handlebars-style dynamic variables.
6. **Native AI Integration (MCP)**: Give AI coding agents in Cursor, Claude Desktop, and IDEs full autonomy to test email delivery, verify DNS records, and diagnose deliverability issues via the native Model Context Protocol (MCP) server.

---

## Key Architectural Highlights

- **99.99% Availability SLA**: Multi-region active-active queue replication across distinct availability zones.
- **Sub-250ms Global Dispatch Latency**: Edge routing with smart ISP failover and latency-probed upstream gateways.
- **Anti-Clipping & Deliverability Linter**: Layout minifier keeping email payloads safely under Gmail's 102KB truncation limit.
- **Cryptographic Event Verification**: Every message dispatch, bounce event, and status transition is hashed and timestamped for SOC2 and GDPR compliance.
- **HMAC Webhook Signatures**: Instant HTTPS webhooks with `X-Mailofly-Signature` headers and a 72-hour exponential retry backoff.
- **Native Database Triggers**: Trigger emails directly on Supabase PostgreSQL `INSERT`/`UPDATE` operations or real-time Google Sheets sync without writing middleware servers.

---

## Core Features

### 1. Studio & Sender Identities
- [Custom Business Mailboxes](https://mailofly.com/features/mailboxes): Provision domain-branded mailboxes (`user@yourdomain.com`) with dedicated storage quotas (500MB to 50GB+), webmail access, and universal IMAP (port 993) / SMTP (port 465/587) client sync for Apple Mail, Outlook, and Thunderbird.
- [Gmail API & Connected Identities](https://mailofly.com/features/gmail-api): Authenticate Google Workspace and personal Gmail accounts with one click via OAuth 2.0. Send transactional notifications through Google's trusted infrastructure with zero initial DNS setup and real-time daily capacity meters.
- [Deliverability Design & Anti-Clipping](https://mailofly.com/features/deliverability-design): Automatic CSS minification and inline styles that keep payloads under Gmail's 102KB clipping threshold. Real-time image-to-text ratio evaluation and link SSL verification to prevent spam filter penalties.
- [Real-Time Dynamic Variables](https://mailofly.com/features/variables): Inject JSON payloads directly into subject lines and templates with Handlebars syntax (`{{user.first_name}}`), conditional blocks (`{{#if is_pro}}`), default fallbacks, and nested array loops for invoices and activity receipts.

### 2. Analytics & Delivery Insights
- [Automated Webhook Events](https://mailofly.com/features/webhooks): Stream real-time HTTPS webhooks for `email.delivered`, `email.opened`, `email.clicked`, `email.bounced`, and `email.complained` events. Secured with HMAC-SHA256 signatures and guaranteed delivery with 72-hour exponential backoff.
- [Real-Time Deliverability Radar](https://mailofly.com/features/radar): Continuous telemetry tracking inbox placement, ISP latency, bounce velocity, and DMARC pass rates across Gmail, Microsoft 365, Yahoo, and iCloud with early throttling alerts.
- [Instant Bounce Diagnostics](https://mailofly.com/features/diagnostics): Automated translation of raw SMTP reply codes (e.g. `550 5.1.1 User unknown`) into human-readable causes and fixes, with smart suppression lists that automatically protect domain reputation against repeat sends.
- [Auditability & Event Verification](https://mailofly.com/features/auditability): Immutable cryptographic log store and timestamped delivery receipts retained up to 7 years for compliance, legal audits, and forensic debugging.

### 3. Customer Lifecycle & Growth
- [Supabase & Database Integrations](https://mailofly.com/features/integrations): Trigger transactional messages straight from PostgreSQL table inserts or updates in Supabase without running webhook listener servers. Sync audience contacts bidirectionally with Google Sheets in real time.
- [Automated Multi-Step Sequences](https://mailofly.com/features/sequences): Build customer journeys, onboarding flows, and re-engagement drips with custom delay intervals, recipient time-zone delivery windows, conditional branch rules, and automatic conversion exit triggers.
- [Dynamic Audience Segmentation](https://mailofly.com/features/segmentation): Partition contacts dynamically using behavioral filters (opened within 30 days, clicked specific URL, never converted) and compound AND/OR logic that updates list membership in real time.
- [Unsubscribe Compliance & Preference Centers](https://mailofly.com/features/compliance): RFC 8058 One-Click `List-Unsubscribe` headers fully compliant with Gmail and Yahoo 2024 sender requirements, custom branded preference centers, and automatic global suppression.

### 4. Infrastructure, Reliability & AI
- [Email List Validation](https://mailofly.com/features/email-validation): Clean recipient lists, verify syntax and MX records, and detect disposable inboxes to reduce bounces and protect your sender score.
- [Developer SDKs for Every Language](https://mailofly.com/features/sdks): First-class, strictly typed client libraries for TypeScript/Node.js, Python, Go, PHP, Dart/Flutter, and cURL with built-in network retries and zero runtime bloat.
- [Mailofly AI & Native MCP](https://mailofly.com/features/mcp-ai): Model Context Protocol server exposing verified tools (`mailofly_send_email`, `mailofly_list_domains`, `mailofly_get_usage`, etc.) directly into Cursor, Claude Desktop, and agentic IDEs, plus an interactive AI assistant in the dashboard.
- [Smart Dynamic Routing](https://mailofly.com/features/routing): Continuous latency probes and automatic failover across regional servers and upstream SMTP relays to guarantee zero dropped messages during provider outages.
- [Built-in Redundancy](https://mailofly.com/features/redundancy): 3x cross-region queue replication, persistent message storage before acknowledgement, and 99.99% uptime SLA for business-critical communications.

---

## Hosted Business Mailboxes (Inboxes & Webmail)

Mailofly includes a built-in, enterprise-grade business email hosting engine (`apps/mail-server` and `apps/mailbox`) designed to eliminate costly per-seat workspace pricing ($6 to $18/user/month) charged by Google Workspace and Microsoft 365.

### Key Capabilities:
- **Instant Mailbox Provisioning**: Create custom branded inboxes (`user@yourdomain.com`) in seconds directly from verified domains in the dashboard.
- **Dedicated Webmail Portal**: Modern Next.js browser client (`apps/mailbox` at `https://mail.mailofly.com`) supporting dark mode, instant search, folder navigation, message composition, and attachments.
- **Universal Email Client Support**: Full compatibility with Apple Mail (macOS & iOS), Microsoft Outlook, Mozilla Thunderbird, Android Mail, and third-party email clients via standard secure protocols.
- **Storage Quota Management**: Allocate customizable disk space limits (500MB to 50GB+, default 5GB) per mailbox and adjust anytime with zero service interruption or downtime.
- **Email Aliases**: Create secondary aliases for any mailbox (e.g. `billing@` or `support@` forwarding into `alex@`).
- **One-Click Security Controls**: Instant password reset with BCrypt hashing, active/pause mailbox status toggles, and secure credential generation.

### Technical Architecture:
- **Rust-Based Mail Core**: Powered by **Stalwart Mail Server** deployed as a dedicated microservice on Fly.io (`apps/mail-server`).
- **Dynamic PostgreSQL Directory**: Authenticates dynamically against Supabase PostgreSQL views (`public.stalwart_accounts` and `public.stalwart_emails`) — zero user-sync delay or webhook latency.
- **Infinite S3 / Cloudflare R2 Blob Storage**: All message MIME bodies and attachments are streamed directly to cost-effective S3/R2 object storage (~$0.015/GB/mo).
- **Fast Search Indexing**: Full-text message search and TLS state stored in embedded RocksDB on persistent high-speed NVMe volumes.
- **Modern JMAP Protocol (RFC 8620 / RFC 8621)**: Consumed by the webmail client for ultra-fast, efficient JSON-based mailbox synchronization.

### Client Connection Configuration:
- **Incoming Mail (IMAP)**: `mail.mailofly.com` | Port `993` | Security: `SSL/TLS`
- **Outgoing Mail (SMTP)**: `mail.mailofly.com` | Port `587` (STARTTLS) or `465` (SSL/TLS)
- **Webmail URL**: `https://mail.mailofly.com`
- **Username**: Full email address (e.g. `alex@yourdomain.com`)
- **Password**: Configured mailbox password

### DNS Setup for Domain Mailboxes:
To receive emails directly into Mailofly business mailboxes on a custom domain:
- **MX Record**: `@` → `mail.mailofly.com` (Priority `10`)
- **SPF Record**: `@` → `v=spf1 include:mailofly.com ~all`
- **DKIM Record**: Automated selector generated and signed via Stalwart JMAP API
- **Webmail CNAME (Optional)**: `mail.yourdomain.com` → `mail.mailofly.com`

---

## Developer Documentation & Guides

Official documentation is hosted at https://docs.mailofly.com:

- [Documentation Overview](https://docs.mailofly.com): Platform overview, quickstart guides, and developer workflows.
- [Sending Domains & DNS Setup](https://docs.mailofly.com/product/domains): Step-by-step guide to configuring 3x DKIM CNAMEs, SPF TXT records, DMARC policies (`p=none`/`p=reject`), and custom Return-Path subdomains.
- [Sender Identities & OAuth](https://docs.mailofly.com/guides/accounts): Connecting Google Workspace and personal Gmail accounts via OAuth 2.0 with daily quota meter management.
- [Templates & Handlebars Variables](https://docs.mailofly.com/guides/templates): Designing responsive templates, defining JSON merge tags, and fallback values.
- [Transactional Email Delivery](https://docs.mailofly.com/guides/emails): Sending single and batch transactional messages via the REST API or SMTP interface.
- [Contacts & Audience Management](https://docs.mailofly.com/guides/contacts): Managing subscriber lists, dynamic segments, CSV imports, and Google Sheets sync.
- [Outbound Marketing Campaigns](https://docs.mailofly.com/guides/campaigns): Setting up A/B testing, scheduled dispatching, sender rotation, and sequence triggers.
- [Mail Logs & Delivery Telemetry](https://docs.mailofly.com/guides/mail-logs): Inspecting real-time delivery timelines, open/click events, and parsed SMTP bounce statuses.
- [API Keys & Scopes](https://docs.mailofly.com/guides/api-keys): Creating restricted workspace API keys (`mf_live_...`), token rotation, and permission scopes.
- [Hosted Business Mailboxes Guide](https://docs.mailofly.com/mailboxes/introduction): Provisioning inboxes, storage quota management, DNS MX setup, IMAP/SMTP client sync, and JMAP Webmail.
- [Official SDKs Guide](https://docs.mailofly.com/sdks): Installation, configuration, and best practices for polyglot client libraries.

---

## REST API Reference

- **Base URL**: `https://api.mailofly.com` (or `https://mailofly.com/api/v1`)
- **Authentication**: `Authorization: Bearer <MAILOFLY_API_KEY>` (keys begin with `mf_live_` or `mf_test_`)
- **Content-Type**: `application/json`
- **Documentation**: https://docs.mailofly.com/api

### Key API Endpoints

| Method | Endpoint | Description | Docs Link |
|--------|----------|-------------|-----------|
| `GET` | `/v1` | Service discovery and available endpoint resources | [Discovery](https://docs.mailofly.com/api) |
| `POST` | `/api/v1/emails` | Send a transactional email with HTML, text, or template | [Send Email](https://docs.mailofly.com/api/emails) |
| `POST` | `/api/v1/emails/send` | Alias endpoint to dispatch transactional emails | [Send Email](https://docs.mailofly.com/api/emails) |
| `POST` | `/api/v1/emails/batch` | Batch dispatch up to 500 emails in a single request | [Batch Send](https://docs.mailofly.com/api/emails) |
| `GET` | `/api/v1/emails/:id` | Fetch full message metadata and delivery status | [Email Details](https://docs.mailofly.com/api/emails) |
| `GET` | `/api/v1/mail-logs` | Query delivery logs with filtering by status and recipient | [Mail Logs](https://docs.mailofly.com/api/mail-logs) |
| `GET` | `/v1/accounts` | List connected sender identities (OAuth & SMTP) | [Identities](https://docs.mailofly.com/api/accounts) |
| `POST` | `/v1/accounts` | Register a new SMTP or OAuth sender identity | [Create Identity](https://docs.mailofly.com/api/accounts) |
| `PATCH` | `/v1/accounts/:id` | Update sender identity settings or daily limits | [Update Identity](https://docs.mailofly.com/api/accounts) |
| `DELETE` | `/v1/accounts/:id` | Remove a connected sender identity | [Delete Identity](https://docs.mailofly.com/api/accounts) |
| `GET` | `/v1/contacts` | List contacts with pagination and metadata | [Contacts](https://docs.mailofly.com/api/contacts) |
| `POST` | `/v1/contacts` | Create or upsert a subscriber with custom attributes | [Create Contact](https://docs.mailofly.com/api/contacts) |
| `PATCH` | `/v1/contacts/:id` | Update subscriber profile or subscription status | [Update Contact](https://docs.mailofly.com/api/contacts) |
| `DELETE` | `/v1/contacts/:id` | Permanently delete a contact record | [Delete Contact](https://docs.mailofly.com/api/contacts) |
| `GET` | `/v1/segments` | List dynamic and static audience segments | [Segments](https://docs.mailofly.com/api/segments) |
| `POST` | `/v1/segments` | Create a new audience segment with filter rules | [Create Segment](https://docs.mailofly.com/api/segments) |
| `GET` | `/v1/segment-contacts` | Fetch contacts belonging to a specific segment | [Segment Contacts](https://docs.mailofly.com/api/segment-contacts) |
| `GET` | `/v1/templates` | List stored email templates | [Templates](https://docs.mailofly.com/api/templates) |
| `POST` | `/v1/templates` | Create a new HTML template with Handlebars syntax | [Create Template](https://docs.mailofly.com/api/templates) |
| `GET` | `/v1/campaigns` | List marketing campaigns and outbound sequences | [Campaigns](https://docs.mailofly.com/api/campaigns) |
| `POST` | `/v1/campaigns` | Draft a new campaign with target segments | [Create Campaign](https://docs.mailofly.com/api/campaigns) |
| `POST` | `/v1/campaigns/:id/send` | Trigger execution of an approved campaign | [Send Campaign](https://docs.mailofly.com/api/campaigns) |
| `GET` | `/api/v1/sending-domains` | List sending domains and DNS verification status | [Domains](https://docs.mailofly.com/product/domains) |
| `POST` | `/api/v1/sending-domains` | Register a sending domain and generate DKIM keys | [Create Domain](https://docs.mailofly.com/product/domains) |
| `POST` | `/api/v1/sending-domains/:id/verify` | Trigger automated DNS validation check | [Verify Domain](https://docs.mailofly.com/product/domains) |
| `GET` | `/v1/webhooks` | List registered webhook endpoints and subscriptions | [Webhooks](https://docs.mailofly.com/api) |
| `POST` | `/v1/webhooks` | Register a new webhook endpoint with signing secret | [Create Webhook](https://docs.mailofly.com/api) |
| `GET` | `/v1/usage` | Fetch monthly usage volume, quota caps, and send meters | [Usage](https://docs.mailofly.com/api) |

---

## Official SDKs & Libraries

Mailofly maintains official, battle-tested open-source SDKs for popular languages:

- **Node.js / TypeScript**: `@mailofly/node`
  - Package: [npmjs.com/package/@mailofly/node](https://www.npmjs.com/package/@mailofly/node)
  - GitHub: [teamredevs/mailofly-js](https://github.com/teamredevs/mailofly-js)
  - Install: `npm install @mailofly/node` or `pnpm add @mailofly/node`
- **Python**: `mailofly`
  - Package: [pypi.org/project/mailofly/](https://pypi.org/project/mailofly/)
  - GitHub: [teamredevs/mailofly-python](https://github.com/teamredevs/mailofly-python)
  - Install: `pip install mailofly`
- **Dart / Flutter**: `mailofly`
  - Package: [pub.dev/packages/mailofly](https://pub.dev/packages/mailofly)
  - GitHub: [teamredevs/mailofly-dart](https://github.com/teamredevs/mailofly-dart)
  - Install: `dart pub add mailofly`
- **Go**: `github.com/teamredevs/mailofly-go`
  - GitHub: [teamredevs/mailofly-go](https://github.com/teamredevs/mailofly-go)
  - Install: `go get github.com/teamredevs/mailofly-go`
- **PHP**: `mailofly/mailofly`
  - Package: Packagist `mailofly/mailofly`
  - GitHub: [teamredevs/mailofly-php](https://github.com/teamredevs/mailofly-php)
  - Install: `composer require mailofly/mailofly`
- **Model Context Protocol (MCP)**: `@mailofly/mcp`
  - Package: [npmjs.com/package/@mailofly/mcp](https://www.npmjs.com/package/@mailofly/mcp)
  - GitHub: [teamredevs/mailofly-mcp](https://github.com/teamredevs/mailofly-mcp)
  - Run: `npx @mailofly/mcp`

---

## Mailofly AI & Model Context Protocol (MCP)

Mailofly provides native integration with AI coding agents (Cursor, Claude Desktop, Antigravity IDE, Windsurf) through its Model Context Protocol (MCP) server.

### Available MCP Tools:
- `mailofly_send_email`: Dispatch single transactional messages with HTML or templates.
- `mailofly_send_batch`: Send up to 500 emails in one tool call.
- `mailofly_get_email`: Inspect delivery status, error logs, and timestamps for any message.
- `mailofly_list_emails`: Filter and retrieve recent mail dispatch records.
- `mailofly_list_domains`: Check all configured sending domains and their DNS verification flags.
- `mailofly_create_domain`: Register a new sending domain and retrieve required DKIM/SPF DNS records.
- `mailofly_verify_domain`: Trigger an immediate DNS check against authoritative name servers.
- `mailofly_list_identities`: List connected Google Workspace and SMTP sender accounts.
- `mailofly_list_templates`: Browse visual and markdown templates in the workspace.
- `mailofly_get_usage`: Retrieve monthly send count, quota limit, and delivery success percentage.
- `mailofly_list_contacts`: Inspect audience contacts and subscription states.
- `mailofly_create_contact`: Add new recipients to customer lists with custom attributes.
- `mailofly_list_webhooks`: Audit active HTTPS webhook endpoints.

### Adding MCP to Claude Desktop / Cursor Config (`mcp.json`):
```json
{
  "mcpServers": {
    "mailofly": {
      "command": "npx",
      "args": ["-y", "@mailofly/mcp"],
      "env": {
        "MAILOFLY_API_KEY": "mf_live_your_api_key_here"
      }
    }
  }
}
```

---

## Code Examples

### 1. cURL — Send Transactional Email
```bash
curl -X POST "https://api.mailofly.com/api/v1/emails" \
  -H "Authorization: Bearer mf_live_your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "Acme <hello@acme.com>",
    "to": ["alex@example.com"],
    "subject": "Your order has shipped! 📦",
    "html": "<p>Hello <strong>Alex</strong>, your tracking code is #TRK-9812.</p>",
    "track_opens": true,
    "track_clicks": true
  }'
```

### 2. TypeScript / Node.js SDK
```typescript
import { Mailofly } from "@mailofly/node";

const mailofly = new Mailofly("mf_live_your_api_key_here");

// Send dynamic template email
const { data, error } = await mailofly.emails.send({
  from: "Acme Team <support@acme.com>",
  to: "user@example.com",
  templateId: "tpl_welcome_onboarding",
  variables: {
    first_name: "Sarah",
    activation_url: "https://acme.com/activate?token=abc123xyz",
    plan_tier: "Pro Annual"
  },
});

if (error) {
  console.error("Failed to dispatch:", error);
} else {
  console.log("Dispatched successfully. Message ID:", data.id);
}
```

### 3. Python SDK
```python
from mailofly import Mailofly

client = Mailofly(api_key="mf_live_your_api_key_here")

response = client.emails.send(
    sender="Acme <notifications@acme.com>",
    to="developer@example.com",
    subject="Security Notice: New Login Detected",
    html="<p>A new login was recorded from IP: 192.0.2.1</p>",
    track_opens=True
)

print("Email sent:", response.id)
```

---

## Free Deliverability & DNS Tools

Mailofly provides a free, public suite of email authentication and diagnostic tools for developers and system administrators:

- [DKIM Checker](https://mailofly.com/tools/dkim-checker): Validate DKIM public keys, test selector records, and inspect cryptographic key lengths (1024-bit vs 2048-bit RSA / Ed25519).
- [DMARC Checker](https://mailofly.com/tools/dmarc-checker): Inspect `_dmarc` policy flags (`p=none`, `p=quarantine`, `p=reject`), percentage sampling (`pct`), and aggregate reporting (`rua`) compliance.
- [SPF Checker](https://mailofly.com/tools/spf-checker): Verify SPF string syntax, ensure strict adherence to RFC 7208's 10-lookup limit, and detect CIDR configuration traps.
- [Blacklist Checker](https://mailofly.com/tools/blacklist-checker): Query sending IPs and root domains across 10+ major DNSBLs (Spamhaus, Barracuda, SORBS, Spamcop).
- [DNS Lookup](https://mailofly.com/tools/dns-lookup): Fast global DNS resolver inspecting A, AAAA, MX, TXT, CNAME, NS, and SOA records.
- [CNAME Lookup](https://mailofly.com/tools/cname-lookup): Trace canonical name delegation chains and diagnose CDN/subdomain forwarding bottlenecks.
- [Reverse DNS (PTR) Lookup](https://mailofly.com/tools/reverse-dns-lookup): Check IP PTR records and verify Forward-Confirmed Reverse DNS (FCrDNS) alignment for ISP acceptance.
- [Email Signature Generator](https://mailofly.com/tools/email-signature-generator): Interactive builder generating responsive, client-tested HTML signatures with social badges and disclaimer snippets.
- [All Tools Index](https://mailofly.com/tools): Complete catalog of free email and DNS utilities.

---

## Competitor Comparisons

Explore detailed technical comparisons highlighting how Mailofly stacks up against legacy and modern transactional providers:

- [Mailofly vs Resend](https://mailofly.com/compare/resend-alternative): Comparison of deliverability tools, Google OAuth sending, mailbox hosting, and pricing flexibility.
- [Mailofly vs SendGrid](https://mailofly.com/compare/sendgrid-alternative): Modern DX, instant onboarding, human-readable SMTP diagnostics, and zero per-seat fees compared to Twilio SendGrid.
- [Mailofly vs Mailgun](https://mailofly.com/compare/mailgun-alternative): Transparent pricing, visual campaign sequences, and zero-DNS sending options.
- [Mailofly vs SparkPost](https://mailofly.com/compare/sparkpost-alternative): Lightweight developer APIs, native MCP tools, and modern deliverability monitoring.
- [Mailofly vs Mandrill](https://mailofly.com/compare/mandrill-alternative): Standalone transactional delivery without requiring a mandatory Mailchimp marketing subscription.

---

## Platform & Application Pages

- [Login](https://app.mailofly.com/login): Access the user management console.
- [Register](https://app.mailofly.com/register): Create a free Mailofly account (includes 3,000 free sends/month).
- [User Dashboard](https://app.mailofly.com/user): Main management overview with delivery analytics and quick actions.
- [Business Mailboxes Console](https://app.mailofly.com/user/mailboxes): Provision, manage, set quotas, reset passwords, and view client settings for company email accounts.
- [Webmail Portal](https://mail.mailofly.com): Modern browser-based email client powered by JMAP for employees to read, compose, search, and manage mail.
- [Sending Domains](https://app.mailofly.com/user/domains): Configure custom domains, view DNS records, and trigger verification.
- [Sender Identities](https://app.mailofly.com/user/identities): Manage connected Google Workspace, Gmail API, and custom SMTP identities.
- [Mail Logs](https://app.mailofly.com/user/emails): Real-time delivery logs, searchable recipient history, and raw SMTP response inspector.
- [Templates](https://app.mailofly.com/user/templates): Create, test, and preview responsive email templates with live JSON test payloads.
- [Contacts & Segments](https://app.mailofly.com/user/contacts): Audience manager, subscriber lists, custom attributes, and Google Sheets sync.
- [Campaigns](https://app.mailofly.com/user/campaigns): Scheduled broadcasts and multi-step automated sequences.
- [Webhooks](https://app.mailofly.com/user/webhooks): Configure HTTPS webhook endpoints and manage signing keys.
- [API Keys](https://app.mailofly.com/user/api-keys): Generate and revoke workspace API tokens.
- [SMTP Settings](https://app.mailofly.com/user/settings?tab=smtp): Retrieve SMTP host, ports (587 / 465), and authentication credentials.
- [Help & Support](https://app.mailofly.com/user/support): Submit tickets or get developer assistance.

---

## Company, Resources & Legal

- [Home](https://mailofly.com): Product overview, live feature demonstrations, and customer testimonials.
- [Pricing](https://mailofly.com/pricing): Transparent tiers — start free with 3,000 emails/mo, with flexible volume scaling and annual discounts.
- [Features Directory](https://mailofly.com/features): Index of all platform capabilities across Studio, Analytics, Lifecycle, and Infrastructure.
- [About Us](https://mailofly.com/about): Mailofly engineering mission, deliverability standards, and company story.
- [Blog](https://mailofly.com/blog): In-depth articles on email deliverability, DNS architecture, and technical guides.
- [Changelog](https://mailofly.com/changelogs): Platform release notes, feature launches, and SDK updates.
- [News & Press](https://mailofly.com/news): Announcements and company press releases.
- [Case Studies](https://mailofly.com/case-studies): Customer success stories and performance benchmarks.
- [Careers](https://mailofly.com/careers): Open positions and working at Mailofly.
- [Privacy Policy](https://mailofly.com/policy/privacy-policy): Privacy practices and GDPR data protection disclosures.
- [Terms & Conditions](https://mailofly.com/policy/terms-conditions): Terms of service and usage policies.
- [Refund Policy](https://mailofly.com/policy/refund-policy): Billing and refund terms.
- [EULA](https://mailofly.com/policy/eula): End User License Agreement.