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Guides - Page 14

Practical guides for MailSlurp messaging, testing, reliability, extract, account setup, and procurement workflows.

Page 14 of 14166 posts

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technical

Creating custom domains

How to use MailSlurp custom domains for inboxes, routing, and sender-controlled workflows. Verify DNS, create addresses on your own domain, and connect branded email to apps, tests, and operations.

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technical

Create a MailSlurp subscription using a quote today!

How to procure an account using a quote and invoice

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technical

Configuring DNS records for SMTP is important for email delivery.

How to configure DNS records for SMTP mail servers or MailSlurp custom domains.

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technical

Best SMTP Port: 25 vs 465 vs 587 vs 2525

Compare SMTP ports 25, 465, 587, and 2525. Learn which SMTP port to use for app sending, relay, STARTTLS, implicit TLS, and MailSlurp validation.

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technical

BCC in Email: Meaning, Examples, and When to Use It

Learn BCC meaning in email, what BCC does, when to use BCC vs CC, Outlook BCC behavior, and how to test recipient privacy with MailSlurp.

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technical

BCC and CC in SMTP Emails: API Fields, Headers, and Tests

Understand CC and BCC in SMTP email, how recipient fields behave in APIs, and how to test BCC visibility with MailSlurp inboxes.

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technical

Batching API Requests for Email Recipients

Sending emails with multiple recipients? Learn how to bypass MailSlurp's limits with batching in our guide on sending API requests.

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technical

Avoiding email spam filters

Master the art of email deliverability! Discover how to avoid spam filters and ensure your messages reach your audience with these expert tips.

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technical

Avoid email bounces and improve reputation by following best practices

Setup bounce notification webhooks for your account to reduce email bounces. Respond to bounce events by saving bounce recipients.

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technical

A/B Email Testing: Practical Experiment Design For Better Conversions

Learn how to design valid A/B email tests, choose the right metrics, avoid false winners, and roll out improvements safely.

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