MailSystem is a suite of .NET components that provide users with an extensive set of email tools. MailSystem provides full support for SMTP, POP3, IMAP4, NNTP, MIME, S/MIME, OpenPGP, DNS, vCard, vCalendar, Anti-Spam (Bayesian , RBL, DomainKeys), Queueing, Mail Merge and WhoIs
DoHoN (stylised ドホン) is a DNS over HTTPS client for .NET. It's simple, clean, fast, and supports both synchronous and asynchronous usage with caching (and respects TTLs!). It uses .NET Core 2.0 to provide cross-compatibility across multiple OSes. It uses the application/dns-json format.
Networking utilities and data mining for resolving this package will do
Lightning fast DNS operations
ISP Whois Lookups
Wake on Lan
and much more
Documentation at https://firewallapi.asp-waf.com/?topic=html/N-Walter.Net.Networking.htm