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Send email with dynamic IP

Posted on 2006-07-19
Medium Priority
Last Modified: 2010-03-06
I have an SBS 2003 server set up at home. Mainly to troubleshoot and testbed before deplying at work. I am using Outlook 2003 as a client.

I have exchange running with a pop3 connector to get email from my ISP. It works just fine, and even allows me  use my SOPHOS pure message spam blocker.

However, I can't send email. I am guessing that receiving mail servers are seeing my exchange server's dynamic IP and pegging it as a spam merchant.

What do I do?

Question by:hgj1357
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Expert Comment

ID: 17143852
you need to setup a smart host

goto routing group conencters

Name it
"foward all mail though this connecter" Add your ISP's mail server (for me its smtp.comcast.net)
click your server as a bridgehead
in address choose type
now this should route all your outgloing mail though this connecter, it will still be processed by your exchange server but will be sent by comcast so it wont register as dynamic ip

Author Comment

ID: 17154023
This is already in place, but it still does not work. Is there anything special my ISP needs to do?

Author Comment

ID: 17159727
Your message did not reach some or all of the intended recipients.

      Subject:      hello
      Sent:      7/21/2006 12:19 AM

The following recipient(s) could not be reached:

      name@domain.com on 7/22/2006 2:02 AM
            There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.
            <mydomain.com #5.5.0 smtp;550 Authentication is required for relay>
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Accepted Solution

bilbus earned 2000 total points
ID: 17159914
who is your isp?

you will need to add Authentication to the smtp smart host.

add your isp's email account to the advanced, outbound security.
Your isp is not letting you relay without loging in.

Author Comment

ID: 17185123
My ISP needed authentication with the full email address as username.  Works great now - thanks

Expert Comment

ID: 17190780
np, good luck

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