RE: Blast from the past

[Lawrence Landweber]

In the 1980s we ran an X.400 to SMTP-RFC822  mail 
gateway at Wisconsin.  This was during the height of the 
Internet / OSI protocol wars. 

Earlier, we also ran a BITNET to Internet mail gateway. 

Both used software developed at Wisconsin (an IBM VM 
internet protocol implementation (WISCNET) for VM for 
the latter and a BSD Unix implementation of the ISO/OSI 
protocols for the latter). Address format, protocol
tranlations and option handling were a challenge.