Email infrastructure · plans & pricing
54 providers · USD monthly pricing · editorial picks, not delivery-score rankings
Find the right email infrastructure for your application. Compare send-based plans at a shared workload, then weigh developer experience, delivery visibility and the difference between notifications, campaigns and programmable inboxes.
Modern applications
A simple sending API, React Email workflow and webhooks make Resend a useful starting point for application teams.
3,000 emails included · 100/day cap
50K emails included
100K emails included
Custom volume & terms
$20/mo
Pro at 50K emails
Transactional workflows
Message streams and activity retention suit teams that need to investigate receipts, alerts and password-reset delivery.
100 emails included
10K emails included
10K emails included
10K emails included
$66/mo
Platform at 50K emails
Infrastructure control
Usage-based sending and AWS integration suit teams that prefer building their own delivery operations around cloud infrastructure.
Pay per email sent
Pay per email sent
Pay per email sent
Pay per email sent
$5.00/mo
À la carte at 50K emails
Monthly email volume
50Kemails / month
Plan matches use included monthly email allowances, then eligible overages. Daily caps still apply. Contact-, seat- and inbox-based subscriptions cannot be matched from sends alone. Estimates exclude taxes and optional add-ons.
Compare the full directory
| Matched plan / billing | |||
|---|---|---|---|
| SendGridTwilio | Marketing + transactional · Mature deliverability | Essentials50K emails included | $20/moPricing details |
| Amazon SESAmazon Web Services | Usage based · AWS integration · Dedicated IP options | À la cartePay per email sent | $5.00/moPricing details |
| MailgunSinch | Email validation · Inbound routing · EU region | Foundation50K emails included | $35/moPricing details |
| ResendResend | React Email · Simple API · Webhooks | Pro50K emails included | $20/moPricing details |
| PostmarkActiveCampaign | Delivery speed · Message streams · 45-day retention | Platform10K emails included | $66/moPricing details |
| BrevoBrevo | Transactional + marketing · SMS · EU-based | Standard20K emails included | $55/moPricing details |
| KlaviyoKlaviyo | E-commerce data · Omnichannel · Shopify ecosystem | Billed by profilesSee provider plan details | —Pricing details |
| MandrillMailchimp | Send transactional emails via REST API or SMTP credentials · Sold in blocks of 25,000 emails with volume discounts from $20 down to $10 per block · Inbound email processing and real-time event webhooks · Custom domain whitelabeling, dedicated IPs, and rules engine | Billed by emailsDetailed plans not available | —Pricing details |
| SparkPostBird | Deliverability analytics · Enterprise scale · Predictive signals | Standard50K emails included | $20/moPricing details |
| MailjetSinch | Send transactional and marketing emails via Send API v3.1 or SMTP relay · Real-time event webhooks for opens, clicks, bounces, spam complaints, and blocks · Responsive email builder with support for MJML open-source markup · Contact list management, email address validations, and inbox preview testing | Billed by emailsDetailed plans not available | —Pricing details |
| MailerSendMailerLite | REST API · Template builder · Inbound routing | Standard50K emails included | $28/moPricing details |
| Customer.ioCustomer.io | Behavioral messaging · Lifecycle workflows · Event triggers | Billed by profilesSee provider plan details | —Pricing details |
| MailerLiteMailerLite | Email marketing · Automation · Budget friendly | Billed by subscribersSee provider plan details | —Pricing details |
| MailtrapRailsware | Email sandbox · Sending API · Detailed logs | Standard10K emails included | $55/moPricing details |
| Apollo.ioApollo.io, Inc. | Database of over 275 million B2B contacts with verified email addresses · Automated multi-step email sequences and engagement cadences · Chrome extension for lead enrichment and prospecting directly from LinkedIn · Native CRM integrations with platforms like Salesforce and HubSpot | Billed by userDetailed plans not available | —Pricing details |
| KitKit | Creator newsletters · Sequences · Subscriber API | Billed by subscribersSee provider plan details | —Pricing details |
| LoopsLoops | SaaS lifecycle email · Event tracking · Modern UI | Billed by contactsSee provider plan details | —Pricing details |
| InstantlyInstantly | Account rotation · Warmup · Inbox placement | Billed by leadsSee provider plan details | —Pricing details |
| Elastic EmailElastic Email Inc. | REST API and SMTP relay for transactional and marketing email delivery · SDKs and client libraries for 12 programming languages · Drag-and-drop template designer and built-in email verification · Real-time deliverability analytics, webhooks, and suppression management | Billed by emailsDetailed plans not available | —Pricing details |
| GetResponseGetResponse S.A. | Unlimited email sends across all standard paid tiers · Visual marketing automation workflows and autoresponders · Drag-and-drop landing page and website builders with AI features · Built-in webinar hosting and conversion funnel tools · Comprehensive REST API, webhooks, and ecommerce integrations | Billed by contactsDetailed plans not available | —Pricing details |
| OmnisendOmnisend | Ecommerce-tailored automations for cart abandonment, order confirmations, and win-back flows · Multi-channel support including email, SMS, and web push notifications · Extensive REST API for managing contacts, custom events, orders, and campaigns · Dynamic product recommendation and discount code content blocks | Billed by contactsDetailed plans not available | —Pricing details |
| ZeptoMailZoho Corporation | Exclusively transactional email sending to protect domain and IP reputation · Credit-based pay-as-you-go pricing with no monthly subscription lock-in (credits valid for 6 months) · Integration via RESTful APIs and SMTP relay with SDK support for multiple languages · Comprehensive email logs, suppression list management, and delivery analytics | Billed by emailsDetailed plans not available | —Pricing details |
| LemlistLemlist | Personalization · Multichannel outreach · Campaign API | Billed by seatsSee provider plan details | —Pricing details |
| Campaign MonitorMarigold | Drag-and-drop email builder with custom HTML template import · Visual customer journey automation and drip campaigns · Built-in transactional email sending with REST API integration · A/B testing, inbox preview, and spam testing tools · Send time optimization and engagement-based segmentation on higher tiers | Billed by contactsDetailed plans not available | —Pricing details |
| NovuNovu | Unified multi-channel orchestration across email, in-app inbox, SMS, push, and chat · Pre-built embeddable Inbox component and subscriber preference management · Workflow engine supporting digests, delays, conditional logic, and provider integrations · Open-source core with options for cloud hosting or self-hosted deployment | Billed by workflow runsDetailed plans not available | —Pricing details |
| SmartleadSmartlead | Multiple sending accounts · Lead routing · Master inbox | Billed by leadsSee provider plan details | —Pricing details |
| Couriertrycourier.com, Inc. | Multi-channel routing across email, SMS, push, in-app inbox, Slack, Teams, and WhatsApp via a single API · Drop-in notification center and toasts for web and mobile applications · Visual template builder and journey workflows with automatic provider failover across 50+ integrations · Developer and AI tooling including official MCP server, CLI, and client/server SDKs · Pay-as-you-go pricing at $0.005 per send on all channels with no per-seat fees | Billed by sendsDetailed plans not available | —Pricing details |
| KnockKnock Labs, Inc. | Cross-channel workflow orchestration with batching, delays, and branch logic · Prebuilt and headless UI components for in-app notification feeds · Out-of-the-box user preference management and hosted preference centers · Git-like commit and workflow promotion across environments with CLI and API support | Billed by messagesDetailed plans not available | —Pricing details |
| SMTP2GOSMTP2GO | SMTP relay and RESTful API integration with global data centers · Real-time analytics and tracking for delivery, opens, clicks, bounces, and spam complaints · Email overage support allowing sending up to 3x plan limits on paid tiers · Subaccount management and unlimited team members on all paid plans · Dedicated IP included on Professional plans starting at 100,000 emails/month | Billed by emailsDetailed plans not available | —Pricing details |
| Reply.ioReplyApp Inc. | Multichannel sequences across email, LinkedIn, calls, SMS, and WhatsApp · Unlimited connected mailboxes with automated email warmup · Autonomous AI SDR agent (Jason AI) for prospecting and meeting booking · Comprehensive REST API and MCP server support for agentic sales automation | Billed by active contactsDetailed plans not available | —Pricing details |
| MoosendMoosend | Unlimited email campaigns and sends on paid plans · Visual drag-and-drop email automation workflow builder · Built-in landing page and subscription form builders · Real-time analytics and reporting tools | Billed by subscribersDetailed plans not available | —Pricing details |
| SendPulse Transactional EmailSendPulse | Supports SMTP relay and REST API integration · Generous free tier offering 12,000 emails per month · SPF, DKIM, and DMARC domain authentication support · Delivery statistics, unsubscribe management, and webhook notifications · Dedicated IP addresses available on higher-tier plans | Billed by emailsDetailed plans not available | —Pricing details |
| SocketLabsSocketLabs LLC | Cloud SMTP relay service and REST email injection API · StreamScore deliverability scoring and reporting analytics · Inbound email stream parsing and real-time webhook event notifications · Configurable overage protection and automated IP warmup | Billed by emailsDetailed plans not available | —Pricing details |
| SMTP.comSMTP.com | SMTP relay · Sender reputation · Bulk transactional email | Standard50K emails included | $25/moPricing details |
| WoodpeckerWoodpecker.co S.A. | Unlimited email accounts and unlimited team members included on all tiers · Built-in deliverability features including automated warm-up, inbox rotation, and adaptive human-like sending · Real-time email list verification and catch-all validation included at no extra cost · Condition-based sequences with automated follow-ups and LinkedIn outreach steps · Developer ecosystem including REST API, webhooks, Model Context Protocol (MCP) server, and CLI | Billed by contacted prospectsDetailed plans not available | —Pricing details |
| MailshakeMailshake | Automated cold email sequencing with personalized follow-ups · Unlimited email warmup and automated email verification · AI email writing assistant and campaign A/B testing · CRM integrations with Salesforce, HubSpot, and Pipedrive | Billed by userDetailed plans not available | —Pricing details |
| SaleshandyIkigai Infotech LLP | Unlimited email account connections with sender rotation · Automated multi-step cold email sequences with AI assistance · Unified inbox to manage prospect replies across all connected accounts · Integrated deliverability suite with email warm-up and sequence scoring · Built-in B2B Lead Finder contact database with verification credits | Billed by emailsDetailed plans not available | —Pricing details |
| SuprSendSuprStack Inc. | Multi-channel support including Email, SMS, Push, In-App Inbox, WhatsApp, Slack, and MS Teams · Visual workflow engine for branching, routing, batching, and digest scheduling · Centralized template management with WYSIWYG editor, version control, and multi-lingual (i18n) localization · Pre-built in-app feed SDKs and customizable preference center | Billed by notificationsDetailed plans not available | —Pricing details |
| PlunkPlunk | Open source · Simple API · AWS SES infrastructure | Standard3,000 emails included | $47/moPricing details |
| QuickMailQuickMail | Deliverability safeguards · Multichannel campaigns · Team inbox | Billed by sendersSee provider plan details | —Pricing details |
| turboSMTPeDisplay srl | High-deliverability SMTP relay and developer REST APIs · Real-time analytics for opens, clicks, unsubscribes, and bounces · 24/7 customer support via ticket, live chat, and phone · Integrated email validation and custom tracking domain configuration | Billed by emailsDetailed plans not available | —Pricing details |
| Scaleway Transactional EmailScaleway | European cloud · Data residency · Transactional API | Billed by emailsDetailed plans not available | —Pricing details |
| UniOneECOMZ Holding Limited | Email delivery via RESTful Web API and SMTP API · Dynamic templating supporting Liquid, Velocity, and Simple template engines · Drag-and-drop email builder with AI HTML editor and 200+ pre-built templates · Real-time event webhooks, click/open tracking, and up to 100 days of analytics storage · Integrated email validation API and automatic suppression list management | Billed by emailsDetailed plans not available | —Pricing details |
| MailerooMaileroo | Transactional API · Inbound webhooks · Simple REST setup | Standard10K emails included | $42/moPricing details |
| AgentMailAgentMail | AI agent inboxes · Programmatic email · Message processing | Billed by inboxesDetailed plans not available | —Pricing details |
| AhaSendAhaSend | Fast transactional API · Simple pricing · Engineer support | Billed by emailsDetailed plans not available | —Pricing details |
| InboxroadInboxroad B.V. | SMTP relay and REST APIs for marketing and transactional emails · Dedicated IP addresses with automated IP warm-up schedules · Per-ISP send-rate controls and integrated Feedback Loops (FBLs) · Drag-and-drop campaign email builder and HTML editor · Real-time event webhooks and delivery monitoring | Billed by emailsDetailed plans not available | —Pricing details |
| BavimailBavimail | Unified REST API and SDKs (TypeScript and Python) for outbound and inbound email · Per-agent dedicated inboxes and official MCP server integration for AI agents · Automated domain authentication setup and verification for SPF, DKIM, and DMARC · Signed webhooks across email lifecycle and delivery events | Billed by emailsDetailed plans not available | —Pricing details |
| Dead Simple EmailDead Simple Email LLC | Programmatic inbox provisioning via REST API, SDKs, and native Model Context Protocol (MCP) server support · Inbound prompt-injection risk scoring and structured JSON reply parsing · Real-time event streaming and delivery via HMAC-signed webhooks, WebSockets, and SSE · Custom domain support with automatic SPF, DKIM, and DMARC configuration | Billed by emailsDetailed plans not available | —Pricing details |
| Mails.aiMails.ai | Inbound email parsing delivered as structured JSON with automatic prompt-injection detection · Automatic email thread reconstruction and conversation handling via REST, SSE, or webhooks · Native Model Context Protocol (MCP) server support alongside TypeScript and Python SDKs · Per-agent reputation monitoring and send limits with cold outreach enforcement | Billed by sendsDetailed plans not available | —Pricing details |
| NitrosendNitrosend Pty Ltd | Native support for AI agents via Model Context Protocol (MCP), REST API, and CLI · Unified sending for newsletters, transactional emails, and automated lifecycle flows · Unlimited contacts included on all plans with pricing based solely on send volume · Automated brand kit formatting and AI copywriting powered by NitroWheel LLM · Support for bringing your own sending infrastructure (e.g., SES, Mailgun) and AI API keys | Billed by emailsDetailed plans not available | —Pricing details |
| WaypointMetaccountant, Inc. | Block-based visual template builder supporting Liquid syntax, conditional logic, loops, and test data · Detailed observability with complete message logs including rendered HTML, variables, and delivery event timeline · Unlimited team members with no per-seat fees on all plans · Purposely designed for transactional emails with curated IP pools to maintain high deliverability | Billed by emailsDetailed plans not available | —Pricing details |
| ShipmailShipmail | Custom-domain email with webmail, IMAP, SMTP, and JMAP support · REST API, webhooks, and MCP server for AI agent integration · Shared inboxes, calendars, contact management, and booking features · 15–25 GB of storage per mailbox | Billed by mailboxesDetailed plans not available | —Pricing details |
| RobotomailRobotomail | Multi-tenant inboxes · Event streaming · Conversation threads | Billed by inboxesSee provider plan details | —Pricing details |
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Send estimates use the same tracked plans as each provider’s pricing page. “—” means a comparable send-based quote is unavailable, not that sending is free.
The buying guide
An outbound notification API, a marketing platform and a programmable inbox solve different problems. Start with what your application needs to send or receive.
Explore pricing: ResendCustomer.ioAgentMail
The included email allowance is only one part of the bill. Compare the same workload and separate optional features from the sending price.
Explore pricing: Amazon SESMailgunPostmark
A lower bill is not useful if important messages stop arriving. Keep your sending identity and observability intact during a migration.
There is no universal best provider. Resend is an editorial pick for modern app integrations, Postmark for transactional workflows, and Amazon SES for AWS-based infrastructure control. Compare required features and the plan at your own volume before choosing.
No. Marketing products may bill by contacts or profiles, outreach tools by seats or leads, and agent products by inboxes. The volume matcher only selects plans with published email-send pricing; other billing units remain separate.
The comparison uses listed USD base fees and sending charges. Taxes, dedicated IPs, attachments, validation, support and other add-ons are not included unless explicitly part of the plan. Confirm current terms on the provider's pricing page.