On Thu, 2007-07-19 at 04:24 -0500, Linus Ulrick wrote: > Actually, the errors that I sent were all that I had at the time. > But, I attempted an experiment on this issue by sending a test mail > from steve@xxxxxxxxxxxx to three outside addresses. I did this using > mutt. As a result, I finally got a non-delivery report (which reminds > me: the non-delivery report that I am about to quote is the first one > that I have received in the entire time that I have been trying to > figure this out): > > ---------- Begin Quote ---------- > From: Mail Delivery Subsystem <MAILER-DAEMON@xxxxxxxxxxxx> > To: <steve@xxxxxxxxxxxx> > Subject: Returned mail: see transcript for details > Date: Wed, 18 Jul 2007 19:45:11 -0500 > > The original message was received at Wed, 18 Jul 2007 19:45:06 -0500 > from [127.0.0.1] > > ----- The following addresses had permanent fatal errors ----- > <meow8282@xxxxxxxxx> > (reason: 550-5.7.1 [74.134.123.247] The IP you're using to send > email is not authorized ) The server won't accept mail from that IP. Something similar for the two subsequent addresses, but with less details about *why* in the response. Many servers will not accept mail from customer IPs (dynamic or static), as an anti-spam deterrent. You may be forced to "smarthost" through your ISP, or through some other mail service that accepts mail from you. Smarthost stops your SMTP server from directly connecting to the end-recipient's SMTP server (it looks up the MX record for their domain, and uses the SMTP server in the answer), all mail goes through a pre-configured SMTP server, instead. > ----- Transcript of session follows ----- > ... while talking to gmail-smtp-in.l.google.com.: > >>> DATA > <<< 550-5.7.1 [74.134.123.247] The IP you're using to send email is not authorized > <<< 550-5.7.1 to send email directly to our servers. Please use > <<< 550 5.7.1 the SMTP relay at your service provider instead. i34si2353660wxd > 554 5.0.0 Service unavailable > ... while talking to mx2.hotmail.com.: It even spelt it out for you, above, explicity. -- [tim@bigblack ~]$ uname -ipr 2.6.21-1.3228.fc7 i686 i386 Using FC 4, 5, 6 & 7, plus CentOS 5. Today, it's FC7. Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists.
