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Setup CDONTS on Windows 2000 SMTP with
two SMTP servers on same web server
This article covers one of the most common questions I see about
getting email sent properly from an ASP or ASP.NET page. How do to setup my pc
machine or server to send CDONTS mail. Step 4 is generally what have to be setup.
This article covers having a mail program and SMTP service on the same server.
It already assumes you have a SMTP server running on your network in either case.
We were working on an app that sends email using CDONTS from our
development web server. We also run mail server on the same
server that provides POP3, SMTP, IMAP services. The issue was getting
both the mail programs SMTP service and the Windows 2000 SMTP service that is
provided as part of IIS. The problem is one service wouldn't
start up due to both were trying to use the default SMTP port 25. There is
a work around I discovered recently that allowed both to operate. There is
one issue with this setup, The Windows 2000 SMTP service won't be able to
receive mail.
For those developers who are at home, using a dial-up or broadband
service. I've found some ISP's that allow you to put their settings in the
Internet Svc Manager(PS: I can't guarentee this will work but its worth a shot!,
if your ISP comes after you, I claim no responsibility). If your unsure
what is being mentioned, verify the pop3 and smtp settings in your Mail program
such as Outlook, Outlook Express or whatever you use and place the same SMTP
settings in IIS.
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Install Mail Server Program (IMail, Mercury Mail etc..)
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Configure mail program(Imail, Mercury Mail etc.) to route SMTP traffic.
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Open Internet Service Manager, Right click on SMTP Default
Virtual Server, click advanced on general tab and edit the port to 26.
ONLY EDIT THE PORT IF
YOU HAVE TWO SMTP SERVICES RUNNING ON THE SAME SERVER, OTHERWISE LEAVE
PORT 25! 0
'If your just trying to configure the Windows SMTP service
provided by IIS , Open Internet Svc manager, right click on
SMTP Default Virtual Server and follow step 4, -
While in the SMTP properties tab, click the Delivery
Tab, select the Advanced fill in the smart host information. The
Fully-Qualified Domain Name textbox needs the computername entered. My
experience this needs to be able to resolve in DNS
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Start SMTP in services control panel. (Start,
Settings, Control panel, Admin tools, Services Icon)
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Stop and start Mail Program SMTP service.
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Platforms that provide SMTP support
- Windows 2000 (Pro, and all Service versions) Verify the SMTP service is installed though!
- NT 4.0 server with Option Pack 4.0 -- NT 4.0 Workstation is NOT supported
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