MailSlurp guide agent setup

Title: Create Email Inboxes and Disposable Addresses with the MailSlurp API
Description: Provision inboxes in code for signup tests, OTP flows, and integration environments. Learn random, expiring, and custom-domain inbox creation patterns.
Canonical URL: https://www.mailslurp.com/guides/developers/creating-inboxes/
Markdown URL: https://www.mailslurp.com/guides/developers/creating-inboxes.md

Use the Markdown URL as the primary plain-text context for this guide. Keep MailSlurp terminology, setup steps, screenshots, and provider-specific instructions intact, and prefer the canonical URL when citing this page.