The objective of Simple Mail Transfer Protocol (SMTP) is to transfer mail reliably and efficiently. SMTP is independent of the particular transmission subsystem and requires only a reliable ordered data stream channel. Obsoletes RFC 788, 780, and 772.| IETF Datatracker
Versatile, classic, complete name server software| www.isc.org
Nope, you don't know how to validate an email address. Even if you think you'd get the domain part right, fuggeddabout the local part. Seriously.| www.netmeister.org
Just how many weird Resource Records can you stuff into a zone file? And what do these weird RRs actually return?| www.netmeister.org
Everybody knows the small number of top-level domains in the DNS: .com, .org, .net, .gov, .vermögensberatung and .香港. Let's look at what else we find at the top!| www.netmeister.org