Build more reliable email and SMS workflows with practical MailSlurp tutorials, implementation guides, and production-ready testing advice.
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Learn how to build HTML emails that survive real clients, send them reliably through SMTP or APIs, and validate links, layout, and delivery before release.
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Learn how to use the Gmail API to verify OTP, password reset, and transactional emails in automated tests, and when a dedicated test inbox API is the better choice.
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Learn how to send email in Java with SMTP using Jakarta Mail, including plain text messages, HTML email, attachments, TLS setup, and safe inbox-level testing.
Read guideLearn how to send email from Excel using VBA, Outlook, mailto formulas, and SMTP. Covers bulk email, attachments, HTML email, and safer alternatives.
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Learn how QA and engineering teams can stop flaky signup, reset, OTP, and notification tests by using isolated inboxes, explicit waits, and API-driven assertions.
Read guideCompare free email marketing platforms by send limits, subscriber caps, automation, branding, deliverability, and upgrade risk so you choose the right tool before you outgrow it.
Read guideLearn how enterprise QA teams can add email and OTP assertions to UiPath, ReadyAPI, ServiceNow, and similar automation stacks without manual inbox checks.
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Compare email verification tools by syntax, MX, disposable, role, catch-all, API, review states, inbox proof, and sender-risk controls.
Read guideLearn the difference between an email verification API and email testing, when to use each one, and why many teams need both to protect signup, delivery, and release workflows.
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Learn when to use regex for email validation, why perfect patterns are a trap, and how to pair syntax checks with domain, mailbox, and workflow verification.
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Compare the best email testing tools for QA, CI, rendering, and deliverability so you can choose the right email testing platform for your workflow.
Read guideLearn what an email preview tool should actually test, how to catch client-specific rendering issues, and why screenshot-only previewing is not enough before launch.
Read guideLooking for something specific? Browse every topic, from email testing and APIs to authentication, deliverability, and SMS.
