2 ms·
If I recall, Exchange Server back in the day was built on an X.400 stack and SMTP was a extra connector yiu could buy. That all got turned around when Exchange
by kjellsbells 4y ago
If I recall, Exchange Server back in the day was built on an X.400 stack and SMTP was a extra connector yiu could buy. That all got turned around when Exchange 5.5 hit and it was clear that even the US Government, who were a massive motive force behind X400/500, were moving on.