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problem sending emails to a specific  address

activenet1 asked
Last Modified: 2008-02-01
hello expert
i`m running exchange 2003 on windows 2003 wich is a DC on the same machine,
recently im having problem to send emails to any of craigslist addresses, the error msg is
Your message did not reach some or all of the intended recipients.

      Subject:      test
      Sent:      10/2/2007 8:38 AM

The following recipient(s) could not be reached:

      job-437765347@craigslist.org on 10/2/2007 8:36 AM
            There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.
            <server.activenet.local #5.5.0 smtp;554 <ool-18bc8e8b.dyn.optonline.net[]>: Client host rejected: Please use SMTP relay of your ISP or setup non-generic DNS>
i have tried to setup an smtp connector to forward all emails through my ISP but it doesn`t work
all emails stll stuck on the que.
please advice...
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thanks guys, i just talked to my ISP support, the problem is because im using dyn ip and follow my isp my options are to have an static ip with additional fee, is there any other way to convert dyn to static without having a real static?
Expert of the Year 2007
Expert of the Year 2006

Your ISP controls your IP address. Therefore you cannot make the address static yourself. The ISP has obviously decided they can charge more for a static address and will have measures in place to ensure that your address remains dynamic.

If you want to send email directly you will need to have a static IP address.

If you do not want to spend on a static IP address then you should be allowed to use your ISPs SMTP server to send email through. That is what home users with Outlook Express will use.



i have tried to use my isp smtp but still i couldn`t send emails
i guess i will swich to static
thanks i will split points


i dont know why but i think my ISP(cablevision-optimumonline)is blocking me from sending
emails through  the`re smtp server.
i tried to setup a connector but all the emails still stays on the server que
is it possible my isp doesn`t allow me to route emails ?
Expert of the Year 2007
Expert of the Year 2006

You would have to ask the ISP that question.
There is every chance that the ISP will block relaying of emails through their server unless the email is from an address on their own domain. They may also require authentication when sending email through their server.
It is impossible for me to know for sure as every ISP is different.


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