🚀 go-pugleaf

In article <1992Oct28.073843.21026@lynx.dac.northeastern.edu> tmetro@lynx.dac.northeastern.edu (Thomas Metro) writes:
>I sent mail to a BITNET address such as:
>        To: @UKCC.uky.edu:user@TEMPLEVM.BITNET
>using 'sendmail -t'. I figured it wouldn't work, but I've seen this

>> >>> RCPT To:<<@ukcc.uky.edu:userA@TEMPLEVM.BITNET>>
>> 501 Syntax Error. Start Path name with '<'
>> @UKCC.uky.edu:V2002A@TEMPLEVM.BITNET... Remote protocol error

The following opinions are in no real sense expert, but are
offered for what they're worth...

It all depends whose sendmail.cf you are running. I personally
think that there is an inherent ambiguity in this routing syntax,
but the gurus seems to disagree....

Anyhow, from memory...

  1) rfc822 states that the angle brackets are part of the syntax
  of source routes, so the address should be given as 
       To:<@UKCC.uky.edu:user@TEMPLEVM.BITNET>

  2) source routing is ugly, unpleasant, and badly implemented.
     As such, it it now not recommended - see RFC1123 or whatever
     the current 'requirement for Internet hosts' is. Lots
     of versions of sendmail.cf get it wrong.

  3) the %-hack  user%templevm.bitnet@ukcc.uky.edu is generally
     accepted as the way to do these sorts of things.

  4) sendmail rarely works for clever things straight out the box,
     you have to twiddle things and set up the relays. IDA sendmail
     makes such things easier I understand, but is much more tricky
     to adapt than a minimalist version if you want to do novel
     things, (e.g. here I do transparent gatewaying DECnet <--> IP)

Anthony

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