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Full Discussion: Electronic Mail Addressing
The Lounge What is on Your Mind? Electronic Mail Addressing Post 302433858 by Action on Wednesday 30th of June 2010 06:26:24 PM
Old 06-30-2010
Quote:
Originally Posted by bluescreen
When I was SA on 10 AT&T 3B2 systems, they used the BANG "!" in place of the AT "@". So a user's email address was: system!user

One caveat to this was there was no "DNS" back then and you had to know the route to the user's system. So when you sent an email, the "TO:" field looked something like this:

Code:
system4!system3!system2!system1!system!user

I know that form, it's UUCP, it was used with UNIX, and UNIX was property of AT&T. As fare as i can understand, it was time of Sendmail as the only MTA. Anyway, instead of always typing full routes email aliasing could be configured in system-wide alias file or user-own .mailrc file(s). System wide (/etc/aliases):
Code:
jimmi: host1!host2!host3!james

User-specific ($HOME/.mailrc):
Code:
alias jimmi host1!host2!host3!james

Mail forwarding could also be configured on central mail server, so that all the other hosts would be its clients in what has to do with email - all mail is submitted to the hub, and hub decides what mail goes to where and maintains all the aliases centrally. Of course, i don't know of your situation there, but that's how i imagine the solution of the problem with long routes.
The picture of 3B2-vme makes me recall of german MFA, it also had extension cards of such format.
 

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LEARN ABOUT SUSE

mail::spf::term

Mail::SPF::Term(3)					User Contributed Perl Documentation					Mail::SPF::Term(3)

NAME

       Mail::SPF::Term - SPF record term class

DESCRIPTION

       An object of class Mail::SPF::Term represents a term within an SPF record.  Mail::SPF::Term cannot be instantiated directly.  Create an
       instance of a concrete sub-class instead.

   Constructor
       The following constructor is provided:

       new(%options): returns Mail::SPF::Term
	   Abstract.  Creates a new SPF record term object.

	   %options is a list of key/value pairs, however Mail::SPF::Term itself specifies no constructor options.

       new_from_string($text, %options): returns Mail::SPF::Term; throws Mail::SPF::ENothingToParse, Mail::SPF::EInvalidTerm
	   Abstract.  Creates a new SPF record term object by parsing the string and any options given.

   Class methods
       The following class methods are provided:

       name_pattern: returns Regexp
	   Returns a regular expression that matches any legal name for an SPF record term.

   Instance methods
       The following instance methods are provided:

       text: returns string; throws Mail::SPF::ENoUnparsedText
	   Returns the unparsed text of the term.  Throws a Mail::SPF::ENoUnparsedText exception if the term was created synthetically instead of
	   being parsed, and no text was provided.

       name: returns string
	   Abstract.  Returns the name of the term.

SEE ALSO

       Mail::SPF, Mail::SPF::Record, Mail::SPF::Mech, Mail::SPF::Mod

       <http://www.ietf.org/rfc/rfc4408.txt>

       For availability, support, and license information, see the README file included with Mail::SPF.

AUTHORS

       Julian Mehnle <julian@mehnle.net>, Shevek <cpan@anarres.org>

perl v5.12.1							    2010-07-05							Mail::SPF::Term(3)
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