Re: SBS 2003 SMTP

Hi Rich,

I think this is what you're looking for:

SBS 2003 DDNS and Email Setup Procedure...
http://groups.google.com/group/microsoft.public.windows.server.sbs/msg/be1d68ee2e0ba0d4?hl=en&;

---------------------------------------
SMARTHOST
As is normal with many ISPs, you'll probably need to authenticate to your
ISP's SMTP server when SENDING mail. In order to accomplish this, you'll
first need to configure Exchange server to use a Smarthost. So, continuing
on with CEICW, at the "Internet E-mail" screen, select Enable Internet
e-mail. On the Email Delivery Method screen, select "Forward all email to
the email server at your ISP". Enter your ISP's SMTP server (e.g.,
mail.yourisp.com).

SMARTHOST AUTHENTICATION
In CEICW you told it to "Forward all email to the email server at your ISP"
(i.e., use the ISP as a Smarthost). Most ISPs require authentication to do
this. To configure authentication, go to:

Server Management | Advanced Management | First Organization (Exchange) |
Connectors | (right click) SmallBusiness SMTP Connector | Properties |
Advanced | Outbound Security | Basic Authentication | Modify.

and enter your authentication credentials. This is usually the primary
account username/password or an email account username/password that was set
up when you signed up with your ISP. Once you've done this, click OK three
times and your Smarthost authentication is done.
---------------------------------------

--
Merv Porter [SBS MVP]
===================================
"Rich65" <Rich65@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:F6B95B34-C77D-417E-9E1B-A46849199E2D@xxxxxxxxxxxxxxxx
I ma running SBS2003 which is setup with pop3/smtp connector to
send/receive
all external emails via an ISP.

Until yesterday all was working OK. Now whenever any of my clients try to
send esternaly they receive an NDR:

The following recipient(s) could not be reached:

<mailto address> on 29/06/2006 12:02
There was a SMTP communication problem with the recipient's
email server. Please contact your system administrator.
<myFQDN #5.5.0 smtp;550 <mailto address>... Relaying denied>


I think I have narrowed this problem down to an SMTP authentication error.
I did this by setting up a standalone machine (connected to my router) and
set up Outlook express to send and receive via my ISP. This works if the
'My
outgoing server (SMTP) requires authentication' box is checked and use the
same settings as I/C server. I f however i deselect this setting, I
receive
exactley the same 550 error.

So the question is how do I configure my SMTP connector in Server Manger
to
do this authentication automatically for all accounts?

Any help would be appreciated!

Rich



.

Relevant Pages

  • Re: Help on SMTP setting, loosing my hairs
    ... my exchange server which host exchange do not use a public Ip. ... check use Exchange and set option in order that mails are host at my ISP ... ISP's SMTP server when SENDING mail. ... you authentication. ...
    (microsoft.public.windows.server.sbs)
  • Re: Not able to Send mails/ news in XP SP2
    ... Have you checked that the smtp setting is correct in your email application? ... In the properties window click the Server tab and check the pop and smtp ... Depending upon the isp they should read either: ... Alternatively it may be that the server need authentication before mail can ...
    (microsoft.public.windowsxp.general)
  • Re: Outlook could not logon to the outgoing mail server - Exchange server
    ... In the Exchange System Manager go to the SMTP Protocol --> Default ... Based on my experience,I think The root cause is your smtp server have been ... configured to require authentication,but your outlook 2003 and outlook ... express authentication are not being configured on the client. ...
    (microsoft.public.windows.server.sbs)
  • Re: SMTP error 550
    ... Then it's most likely related to the authentication as outlined in this KB ... XCON: NDR with Error 0x800CCC79 When You Send SMTP Mail from Outlook Express: ... And Comcast does require authentication under Tools/Accounts - Mail tab and double click the account involved, then open the Servers tab and at the bottom, look for the info about "my server requires authentication." ... mail options were set up with guidance from the ISP. ...
    (microsoft.public.windows.inetexplorer.ie6_outlookexpress)
  • Re: Sending E-Mails from ASP.NET 2.0 page using System.Net.Mail
    ... You need to know if your external smtp server uses: ... of authentication to use. ... > I have been searching the web like mad for a solution to my SMTP problem. ... > Socket s4, Socket s6, Socket& socket, IPAddress& address, ...
    (microsoft.public.dotnet.framework.aspnet)