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Re: What this means "(\w|-)+@\w"?

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El 02/08/2011 14:56, Peter H. Coffin escribió/wrote:
> Several years ago, I wrote an email validator that worked fairly will,
> and handled address cases that hadn't even been thought of yet. It used
> telnet to fake being a MTA to the MX of record for the domain through
> enough steps to ask if the receiving MTA would actually accept mail for
> the address, but stopping short of actually sending anything.
>
> It was, however, really slow, to start up. Once it had everything cached
> up, it could average a couple of email addresses being validated per
> second, but the first few hundred took a half hour or so.
>
> I wonder what happened to that code....

I've never understood the obsession for writing e-mail validation 
routines that not only check for syntax errors but try to find out 
whether the mailbox actually exists. Nobody would install a modem on the 
server so it can be used to validate phone numbers...

Whatever, considering it as proof of concept, your code was a nice 
exercise. Too bad it could not detect typos when the mistyped address 
exists as well.


-- 
-- http://alvaro.es - Álvaro G. Vicario - Burgos, Spain
-- Mi sitio sobre programación web: http://borrame.com
-- Mi web de humor satinado: http://www.demogracia.com
--

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What this means "(\w|-)+@\w"? zhang yun <bigzhangyun@gmail.com> - 2011-07-07 06:58 -0700
  Re: What this means "(\w|-)+@\w"? Michael Fesser <netizen@gmx.de> - 2011-07-07 17:39 +0200
  Re: What this means "(\w|-)+@\w"? Eli the Bearded <*@eli.users.panix.com> - 2011-07-07 18:23 +0000
    Re: What this means "(\w|-)+@\w"? Michael Fesser <netizen@gmx.de> - 2011-07-07 21:12 +0200
    Re: What this means "(\w|-)+@\w"? Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2011-07-07 21:12 +0200
      Re: What this means "(\w|-)+@\w"? Eli the Bearded <*@eli.users.panix.com> - 2011-07-08 06:05 +0000
  Re: What this means "(\w|-)+@\w"? "Álvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> - 2011-07-08 08:42 +0200
    Re: What this means "(\w|-)+@\w"? Sandman <mr@sandman.net> - 2011-08-02 10:06 +0200
      Re: What this means "(\w|-)+@\w"? "Álvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> - 2011-08-02 11:50 +0200
        Re: What this means "(\w|-)+@\w"? "Peter H. Coffin" <hellsop@ninehells.com> - 2011-08-02 07:56 -0500
          Re: What this means "(\w|-)+@\w"? Eli the Bearded <*@eli.users.panix.com> - 2011-08-02 20:53 +0000
            Re: What this means "(\w|-)+@\w"? "Peter H. Coffin" <hellsop@ninehells.com> - 2011-08-03 08:32 -0500
          Re: What this means "(\w|-)+@\w"? "Álvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> - 2011-08-03 10:55 +0200
            Re: What this means "(\w|-)+@\w"? "Peter H. Coffin" <hellsop@ninehells.com> - 2011-08-03 08:46 -0500
        Re: What this means "(\w|-)+@\w"? Sandman <mr@sandman.net> - 2011-08-03 00:21 +0200
          Re: What this means "(\w|-)+@\w"? Eli the Bearded <*@eli.users.panix.com> - 2011-08-03 07:45 +0000
            Re: What this means "(\w|-)+@\w"? Sandman <mr@sandman.net> - 2011-08-03 10:02 +0200
              Re: What this means "(\w|-)+@\w"? Eli the Bearded <*@eli.users.panix.com> - 2011-08-05 00:05 +0000

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