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Groups > comp.lang.java.programmer > #6882

Re: JavaMail bug?

From Martin Gregorie <martin@address-in-sig.invalid>
Newsgroups comp.lang.java.programmer
Subject Re: JavaMail bug?
Date 2011-08-08 22:50 +0000
Organization UK Free Software Network
Message-ID <j1pp73$tje$1@localhost.localdomain> (permalink)
References (5 earlier) <99njvpFv11U1@mid.individual.net> <j1771e$smf$1@localhost.localdomain> <99qjntFk6uU1@mid.individual.net> <j19l2v$h45$1@localhost.localdomain> <99sf3vFncoU1@mid.individual.net>

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On Wed, 03 Aug 2011 09:27:43 +0100, Nigel Wade wrote:

> Note that it does not include AUTH, so no authentication will be allowed
> and the client should not attempt it.
>
Fair point.
 
> This isn't a good idea. It's an open invitation to spammers to verify
> the existence of every recipient in your domain.
>
Except that this server really is private: my firewall blocks all inbound 
connection requests and so its only contact with the outside world are 
its outbound SMTP connections to my ISP's mail server when it needs to 
send mail. Incoming mail is fetched by getmail and passed to the MTA via 
the Postfix.sendmail utility.
 
> I presume that this is due to the fact that the connect() above failed.
> You have specified authentication by using a user/password, but the
> connection does not allow authentication. When you subsequently use
> tr.send() there is no open session so a default session is created which
> appears to be to localhost.
>
OK, that makes sense.
 
Your point about Transport.send() being static would seem to explain the 
behaviour I'm seeing, but there's still a heap of anomalies, mainly in 
the documentation:

- Transport.send() says that its not a good idea to inherit the
  connection from a Session and doesn't provide a suitable way of setting
  the hostname (at least its docs don't mention one or mention the use of
  properties, though obviously they are used by it.

- now go and look at SMTPTransport. Its documentation includes
  example code doing as we did, and getting the connection from Session.

Gaargh!

The double connect is now explained by the Session.connect() making one 
connection and Transport.send() making a second


-- 
martin@   | Martin Gregorie
gregorie. | Essex, UK
org       |

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Thread

JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-23 20:32 +0000
  Re: JavaMail bug? Knute Johnson <september@knutejohnson.com> - 2011-07-23 20:54 -0700
    Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-24 09:50 +0000
      Re: JavaMail bug? Knute Johnson <september@knutejohnson.com> - 2011-07-24 09:27 -0700
        Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-25 19:36 +0000
          Re: JavaMail bug? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2011-07-25 23:00 -0700
            Re: JavaMail bug? Steve Sobol <sjsobol@JustThe.net> - 2011-07-25 23:18 -0700
              Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-26 17:49 +0000
            Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-26 17:42 +0000
  Re: JavaMail bug? Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-07-25 15:40 +0100
    Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-25 19:54 +0000
      Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-25 20:11 +0000
        Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-07-29 21:32 +0000
          Re: JavaMail bug? Knute Johnson <september@knutejohnson.com> - 2011-07-29 16:26 -0700
          Re: JavaMail bug? Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-08-01 13:20 +0100
            Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-08-01 21:49 +0000
              Re: JavaMail bug? Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-08-02 16:34 +0100
                Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-08-02 20:01 +0000
                Re: JavaMail bug? Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-08-03 09:27 +0100
                Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-08-08 22:50 +0000
                Re: JavaMail bug? Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-08-09 13:31 +0100
                Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-08-09 22:47 +0000
                Re: JavaMail bug? Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-08-10 09:34 +0100
                Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-08-10 19:37 +0000
                Re: JavaMail bug? Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-08-03 09:38 +0100
                Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-08-16 21:06 +0000
                Re: JavaMail bug? Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-08-17 10:29 +0100
                Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-08-17 19:54 +0000
                Re: JavaMail bug? Nigel Wade <nmw-news@ion.le.ac.uk> - 2011-08-18 09:34 +0100
                Re: JavaMail bug? Martin Gregorie <martin@address-in-sig.invalid> - 2011-08-18 19:50 +0000
          Re: JavaMail bug? Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-08-01 12:54 +0000

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