Problems with PORTAGE_ELOG_MAIL (Connection error)
On 13:50 Sat 03 Nov , Dan Farrell wrote:
> On Sat, 3 Nov 2007 13:22:18 -0500
> forgottenwizard <email@example.com> wrote:
> > I'm not sure what the purpose of telneting my own system it, either.
> > Would I be looking for an open port?
> Telnet clients are useful debugging tools. You can connect to a
> service (in this case SMTP, on port 25) and then manually implement the
> service's protocol for troubleshooting purposes.
> For Example, in this case my message couldn't be sent because it
> (evidently) contained an invalid header, but the same commands would
> work if connected to a different server. I can see the error message;
> if I was maintaining this server, I could perhaps adjust my
> proxyd-filter.pl file, or suggest that my users adjust their mail
> ================================================== ==================
> Example SMTP session, implemented through telnet.
> dan@atlas ~ $ telnet mx4.hushmail.com 25
> Trying 126.96.36.199...
> Connected to mx4.hushmail.com.
> Escape character is '^]'.
> 220 smtp6.hushmail.com ESMTP Postfix
> HELO spore.ath.cx
> 250 smtp6.hushmail.com
> MAIL FROM: firstname.lastname@example.org
> 250 2.1.0 Ok
> RCPT TO: email@example.com
> 250 2.1.5 Ok
> DATAHello forgottenwizard,
> 502 5.5.2 Error: command not recognized
> 354 End data with <CR><LF>.<CR><LF>
> Hello forgottenwizard,
> This email is meant as an example of the usefulness of a telnet client
> as a general purpose debugging tool, applicable to all sorts of
> plain-text communication protocols. In this case, I spoke SMTP with
> the mail server. You could use the same method to speak to an HTML
> server, or one of many other protocols as well.
> Dan Farrell <firstname.lastname@example.org>
Alright, I've finally gotten around to messing with telnet to try and
look at this problem, but I seem to have lost the other email on what I
need to do.
If you could resend that, and give me some additional info on how to
check through all the possible problems, I'd appreciate it.
email@example.com mailing list
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