Mailozaurr is a PowerShell module that aims to provide SMTP, POP3, IMAP and few other ways to interact with Email. Underneath it uses MimeKit and MailKit and EmailValidation libraries written by Jeffrey Stedfast.

NetCmdlets 2020 - PowerShell Cmdlets for Internet Communications, Messaging & Network Management.

Performs a comprehensive DNS audit of mail-related records (MX, NS, SPF, DMARC, DKIM, BIMI, MTA-STS, TLS-RPT) for a domain, email address, or URL. Includes FCrDNS (PTR) validation on the primary MX host, DKIM selector auto-discovery, TXT/CNAME/BOTH record-type modes, pipeline/bulk input, and CSV/JSON export. Runs on Windows (Resolve-DnsName) and Li... More info

EmailDnsAudit scans domains for MX, SPF, DMARC, and DKIM records and generates reports.

Official PowerShell client for DNS Robot (dnsrobot.net) — DNS lookups, WHOIS queries, SSL certificate checks, SPF/DKIM/DMARC validation, MX/NS lookups, IP geolocation, HTTP headers analysis, and port checking. 53 free online DNS and network tools. Zero external dependencies.

Check DNS client configuration and resolver health — Part of the Dargslan Windows Admin Tools collection. More at https://dargslan.com

Email deliverability diagnostics for any domain - SPF, DKIM, DMARC, MX, PTR, and blacklist sweep (41 lists).