Email & SMS

Programmable email addressesUnlimited inboxes, custom domains, Gmail and Outlook.
Phone numbers & SMSReal numbers to receive texts and verification codes.

Application testing

End-to-end email & SMS testingTest signup, recovery and notification flows.
OTP & MFA testingCapture codes and complete authentication tests.
Load testingCheck message delivery as traffic grows.

Email quality

Device renderingPreview delivered email on real clients and devices.
Email AuditFind broken links, images and accessibility issues.
Inbox placement testingSee inbox, promotions and spam results.
Email warmupBuild sender reputation and reach more inboxes.
Domain monitoringTrack authentication, DNS and sender health.

AI & automation

Email & SMS for AI agentsGive agents accounts with scoped API and MCP access.
AI data extractionTurn emails and attachments into structured data.
Email & SMS pipelinesRoute messages, attachments and replies into your systems.

QA & development teamsTest signup, authentication and application notifications.
Email marketing teamsPreview, audit and check campaign placement before sending.
Deliverability teamsInvestigate inbox placement and sender health.
Automation buildersProcess incoming messages, attachments and replies.

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Email & SMS

Programmable email addresses
Phone numbers & SMS

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End-to-end email & SMS testing
OTP & MFA testing
Load testing

Email quality

Device rendering
Email Audit
Inbox placement testing
Email warmup
Domain monitoring

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Check Domain Health guides and tutorials

2 practical MailSlurp resources

Posts

Run Domain Health Checks Now After DNS Changes

Trigger an immediate domain health check after DNS changes to validate SPF, DMARC, and MX fixes during active incidents.

Read more technical

Domain Health Check Details API for Fast DNS Investigations

Get detailed domain health check data, configuration state, and latest findings to speed up SPF, DMARC, and MX troubleshooting.

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SMTP Deliverability Email Testing Testing Email Inbox Placement Dns Automation JavaScript Email Parser Device Previews Email Deliverability Email API QA SMS Transactional Email DMARC Campaign Testing Sender Reputation API Marketing Email Authentication Integrations Campaign QA

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The complete email and SMS toolkit.

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Email & SMS

Programmable email addresses Phone numbers & SMS

Application testing

End-to-end email & SMS testing OTP & MFA testing Load testing

Email quality

Device rendering Email Audit Inbox placement testing Email warmup Domain monitoring

AI & automation

Email & SMS for AI agents AI data extraction Email & SMS pipelines

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