MailSlurp guide agent setup Title: DNS Lookup Nameservers with MailSlurp Description: Use MailSlurp to look up nameserver, MX, TXT, SPF, DKIM, and DMARC records, then connect DNS evidence to email deliverability and inbox testing. Canonical URL: https://www.mailslurp.com/guides/dns-lookup-nameservers/ Markdown URL: https://www.mailslurp.com/guides/dns-lookup-nameservers.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.