Chris\Jim,

thanks exactly what I was looking for.

regards
Dan Fryer
Project Manager
GSK Messaging

> -----Original Message-----
> From: Scharff, Chris [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, September 04, 2001 2:36 PM
> To:   Exchange Discussions
> Subject:      RE: SMTP Addressing
> 
> I think you're looking for section 4.1.2.
> 
> Partial excerpt:
> 
>             <mailbox> ::= <local-part> "@" <domain>
> 
>             <local-part> ::= <dot-string> | <quoted-string>
> 
>             <name> ::= <a> <ldh-str> <let-dig>
> 
>             <ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>
> 
>             <let-dig> ::= <a> | <d>
> 
>             <let-dig-hyp> ::= <a> | <d> | "-"
> 
>             <dot-string> ::= <string> | <string> "." <dot-string>
> 
>             <string> ::= <char> | <char> <string>
> 
>             <quoted-string> ::=  """ <qtext> """
> 
>             <qtext> ::=  "\" <x> | "\" <x> <qtext> | <q> | <q> <qtext>
> 
>             <char> ::= <c> | "\" <x>
> 
>             <dotnum> ::= <snum> "." <snum> "." <snum> "." <snum>
> 
>             <number> ::= <d> | <d> <number>
> 
>             <snum> ::= one, two, or three digits representing a decimal
>                       integer value in the range 0 through 255
> 
>             <a> ::= any one of the 52 alphabetic characters A through Z
>                       in upper case and a through z in lower case
> 
>             <c> ::= any one of the 128 ASCII characters, but not any
>                       <special> or <SP>
> 
>             <d> ::= any one of the ten digits 0 through 9
> 
>             <q> ::= any one of the 128 ASCII characters except <CR>,
>                       <LF>, quote ("), or backslash (\)
> 
>             <x> ::= any one of the 128 ASCII characters (no exceptions)
> 
>             <special> ::= "<" | ">" | "(" | ")" | "[" | "]" | "\" | "."
>                       | "," | ";" | ":" | "@"  """ | the control
>                       characters (ASCII codes 0 through 31 inclusive and
>                       127)
> 
> 
> *************************************************************
>   Chris Scharff    [EMAIL PROTECTED]    www.swinc.com
>   Simpler-Webb, Inc.      Austin, TX         +1-512-322-0071
>   "Are you pondering what I'm pondering?"
>   "I think so Brain, but . . . if we give peas a chance,
>   won't the lima beans feel left out?"
> ************************************************************* 
> 
> > -----Original Message-----
> > From: Fryer, Daniel M [mailto:[EMAIL PROTECTED]] 
> > Sent: Monday, September 03, 2001 8:16 AM
> > To: Exchange Discussions
> > Subject: SMTP Addressing
> > 
> > 
> >     All,
> > 
> >     does anyone know where I can get a list of all valid SMTP
> > characters? I have checked RFC821 and there seems to be info regarding
> > length of username and domain name etc, but not specific 
> > character lists.
> > 
> >     thanks
> > 
> >     Dan Fryer
> >     Project Manager
> >     GSK Messaging 
> 
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