Plans and pricing
Test, build, automate — with MailSlurp email & SMS
Start
Free
Personal testing
Includes
- Disposable inboxes
- Receive-only email workflows
- API access
- Small free usage allowance
Includes free monthly usage for disposable inboxes, inbound email, and storage.
Expand
Pro
Production email automation
From
/ month
Includes
- Permanent inboxes
- Custom domains
- Phone numbers
- Webhooks
- Email render / device preview
Includes higher monthly usage plus more domains, connections, and workflow controls.
Scale
Growth
High-volume reliability
From
/ month
Includes
Includes all features from Pro, plus:
- Domain monitoring
- Shared access
- Campaign probes
- Inbox warm-up controls
- Deliverability tests
Includes larger monthly usage and higher limits across domains, inboxes, and team operations.
Custom pricing
Enterprise plans
For organizations that need contract-backed rollout planning, governance, and enterprise security controls.
Included support scope
- SAML SSO and centralized identity controls
- Enterprise audit logs and governance workflows
- Custom environments and regional hosting options
- Custom MSA / DPA, procurement, and invoice billing
- Uptime / SLA options aligned to operational requirements
- Security review support with compliance evidence
- Priority onboarding and escalation paths
Compliance standards
Pay-as-you-go features
AI extraction workflows
Transform unstructured inbound messages into reliable structured outputs.
From $1.00 / 10000 credits
Messaging quotas
Increase messaging limits with focused add-ons.
- Extra emailsFrom $0.99 / 1000 emails
- Extra inboxesFrom $3.00 / 1000 inboxes
- StorageFrom $0.75 / 1 B
Email identity controls
Protect sender quality with identity-focused controls.
From $0.01 / address
Phone numbers and SMS channels
Add regional phone numbers for OTP, MFA, and global SMS workflows.
Pricing varies by region and number type
User seats
Add additional collaborators for shared environments and role-based workflows.
From $0.30 / 1
Compare features
Feature Hover row title for details Monthly Annually | Free Always free | Pro From $69.00 / month | Growth From $249.00 / month | Enterprise Contact sales |
|---|---|---|---|---|
| Capacity and throughput | ||||
Included new inboxes / monthBase number of inboxes you can create each month before add-on pricing applies. | 30 | 2,000 | 10,000 | 10,000 |
Total inboxesMaximum number of inboxes that can exist at one time across your account. | 5 | 500 | Unlimited | Unlimited |
Included inbound emails / monthMonthly inbound email allocation before additional usage pricing applies. | 100 | 5,000 | 20,000 | 50,000 |
Inbound emails / dayDaily receive ceiling used for burst protection and abuse prevention. | 30 | Unlimited | Unlimited | Unlimited |
Included outbound emails / monthMonthly outbound email allocation before usage add-ons apply. | - | 2,000 | 5,000 | 10,000 |
Outbound emails / dayDaily send ceiling for throughput and sender reputation controls. | - | Unlimited | Unlimited | Unlimited |
Max email sizeLargest supported message size per email including attachments. | 2 MB | 10 MB | 50 MB | 50 MB |
StorageTotal storage allocation for messages and attachments. | 50.0 MB | 5.0 GB | 20.0 GB | 50.0 GB |
RecipientsRecipient allocation available for sending operations. | 5 | 100 | 250 | Unlimited |
Unique recipientsMaximum number of unique recipient addresses allowed. | - | 50 | Unlimited | Unlimited |
Email threadsMaximum tracked conversation threads in your account. | - | Unlimited | Unlimited | Unlimited |
| Identity and domains | ||||
Custom domainsUse your own sending and receiving domains such as @yourcompany.com. | - | 1 | 3 | 10 |
Alias addressesCreate masked and proxy addresses for routing and identity protection. | - | 10 | 100 | Unlimited |
Connected Gmail inboxesMaximum Gmail inbox connections available through mailbox connectors. | - | 1 | 5 | Unlimited |
| Team and governance | ||||
Included team membersSupported member seats for collaborative access and shared workflows. | - | - | 1 | 1 |
OrganizationsOrganization workspaces available for account-level separation. | - | - | 1 | 5 |
OAuth connectionsOAuth integrations and authorized third-party connection slots. | - | 1 | 5 | Unlimited |
| SMS and phone | ||||
Phone numbersNumber of rentable phone channels included by plan. | - | Unlimited | Unlimited | Unlimited |
| Validation and checks | ||||
Email validations / monthAddress verification checks included each month. | - | 1,000 | 1,000 | Unlimited |
DNS record checks / monthMail server and DNS checks available for domain diagnostics. | - | 1,000 | 1,000 | Unlimited |
| Additional limits | ||||
Phone Provision Request LimitAdditional plan limit exposed by subscription DTO key "phoneProvisionRequestLimit". | - | 5 | 10 | 100 |
| Core messaging | ||||
Permanent inboxesKeep inbox data retained beyond temporary test lifecycles. | No | Yes | Yes | Yes |
Attachment handlingReceive and process attachments as part of inbound workflows. | No | Yes | Yes | Yes |
Email sendingSend outbound email using API and dashboard workflows. | No | Yes | Yes | Yes |
ContactsManage saved recipients and contact records in account workflows. | No | Yes | Yes | Yes |
Tracking pixelsTrack opens with embedded pixel analytics support. | No | Yes | Yes | Yes |
| Automation and routing | ||||
Inbox forwardersAutomatically forward inbound emails based on routing rules. | No | Yes | Yes | Yes |
Inbox repliersSet automatic reply behavior for inbound email workflows. | No | Yes | Yes | Yes |
Inbox rulesetsApply rule-based routing and policy controls to inbound traffic. | No | Yes | Yes | Yes |
WebhooksReceive real-time event payloads in downstream systems. | No | Yes | Yes | Yes |
Queue-based sendingUse controlled outbound queues for predictable sending throughput. | No | Yes | Yes | Yes |
| AI and extraction | ||||
AI transformersExtract structured outputs from unstructured messages and attachments. | No | Yes | Yes | Yes |
Google Sheets destinationDeliver AI extraction outputs directly into Google Sheets. | No | No | Yes | Yes |
| Testing and quality | ||||
Deliverability testsRun expectation-based delivery checks before production rollout. | No | No | Yes | Yes |
Device previewsPreview rendering across major email clients and devices. | No | Yes | Yes | Yes |
Email feature checksCheck links, images, and compatibility signals in email templates. | No | Yes | Yes | Yes |
Domain monitoringMonitor SPF, DMARC, MX and related domain health indicators. | No | No | Yes | Yes |
Screenshot captureCapture snapshots for message or rendering validation workflows. | No | Yes | Yes | Yes |
BackupsBackup-related controls for message retention and recovery scenarios. | No | No | No | Yes |
| Security and governance | ||||
Team member supportAdd and manage user seats for collaborative account access. | No | Yes | Yes | Yes |
User permissionsDefine role-based access controls for teams and operations. | No | No | No | Yes |
Environment controlsSeparate development, staging, and production environments. | No | No | No | Yes |
Import and exportBulk import/export account data for migration and governance. | No | No | No | Yes |
Audit logsTrack account and workspace events for auditability. | No | No | No | Yes |
SAML / SSOConnect corporate identity providers for single sign-on. | No | No | No | Yes |
| Integrations and extensions | ||||
Gmail inbox connectionConnect and automate Gmail inboxes from MailSlurp. | No | Yes | Yes | Yes |
ZapierUse Zapier integration for no-code workflow automation. | No | Yes | Yes | Yes |
Phone plansEnable phone number and SMS provisioning capabilities. | No | Yes | Yes | Yes |
Bulk operationsRun high-volume batch operations in account workflows. | No | No | Yes | Yes |
Password-protected inboxesUse mailbox-level password controls where supported. | Yes | Yes | Yes | Yes |
| Additional features | ||||
Attachment AutomationsAdditional plan feature exposed by subscription DTO key "attachmentAutomations". | No | No | Yes | Yes |
Campaign ProbeAdditional plan feature exposed by subscription DTO key "campaignProbe". | No | No | Yes | Yes |
Email AuditAdditional plan feature exposed by subscription DTO key "emailAudit". | No | Yes | Yes | Yes |
Inbox Warm UpAdditional plan feature exposed by subscription DTO key "inboxWarmUp". | No | No | Yes | Yes |
Permits External SendAdditional plan feature exposed by subscription DTO key "permitsExternalSend". | No | Yes | Yes | Yes |
Virtual Totp DevicesAdditional plan feature exposed by subscription DTO key "virtualTotpDevices". | No | Yes | Yes | Yes |
| Add-on availability | ||||
AI usage add-onToken-based add-on for AI extraction above included quotas. | No | Yes | Yes | Yes |
Email volume add-onIncrease send and receive throughput when included limits are reached. | No | Yes | Yes | Yes |
Inbox creation add-onAdd extra inbox creation capacity beyond included monthly quotas. | No | Yes | Yes | Yes |
Storage add-onExpand account storage capacity for retained messages and attachments. | No | Yes | Yes | Yes |
Validation add-onAdd address validation usage for pre-send quality controls. | No | Yes | Yes | Yes |
Connector add-onEnable or expand connector-based integrations where available. | No | Yes | Yes | Yes |
Guest seat add-onAdd external guest collaborators for review and controlled access flows. | No | No | Yes | Yes |
Frequently asked questions
Answers for technical and procurement buyers
How does pricing work?
Pricing combines base plan access with optional add-ons and usage where applicable. Start with a plan that matches your current team and workflow, then scale specific capabilities as needed.
Can we run this in CI/CD and production workflows?
Yes. MailSlurp is designed for automated tests and production-like validation workflows. Teams commonly integrate with Playwright, Cypress, Selenium, and backend runners.
What controls are available for enterprise buyers?
Enterprise includes SAML SSO support, audit logs, custom environment options, and procurement support. It also supports custom MSA / DPA terms, security reviews, and rollout planning.
How are upgrades and downgrades handled?
Self-serve users can change plans in-app. Larger organizations can coordinate changes, contracts, and rollout windows with the sales team.
Need help deciding
Talk to the sales team
Share expected monthly volume, channels, and compliance needs. We can recommend a plan and rollout path for your use case.
Typical topics
- + Plan sizing for expected monthly traffic
- + Security and compliance requirements
- + Rollout strategy for QA and production
- + Custom procurement and billing paths