Exchange doesn't receive mails through SMTP

[Martin Molter]

Setup:
Internetrouter
outside ip[static IP from ISP provider]
Inside IP[10.0.0.138]

Hardware firewall
[10.0.0.1] + [192.168.1.1]
gateway = 10.0.0.138]
DHCP 192.168.1.100 - 192.168.1.199

SBS Server
[192.168.1.10]

After installing SBS server, I used the POP and SMTP connector to receive
and sent mails, this as a start so I could migrate their mail use later to
work only with smtp, and to have a temporary overflow for the migration time.
This all worked fine.

Then the email provider made an MX-record and forwarded the mails to our
server (our outside ip-address).
I did a MX Lookup online, the mail.ourdomain.nl resolves in our outside
ip-address, so that looks fine.

On the router I forwarded port 25 to the hardware firewall.
On the firewall I forwarded port 25 to the SBS server.
I ran the Email & internet configuration wizard.
Other forwards are working fine in this way (RDP, VNC, HTTP) so it is not
the setup.

On the internet i tried to do a diagnostic of the mailserver, but the
connection failed.

I basically tried a lot of stuff, but I am out of methods to crack this.

Do i have to do something with DNS? Do I have to make an SMTP connector for
this mail which comes in automatically from the provider?

All help would be dearly appreciated.

[Martin Molter]

Well after long ... I found out that all the settings which the wizard and I
made were correct ...

There were 2 mistakes, one which I found out a few hours ago (hosting
provider made a typo in the domainname, which u dont read easily) and the
other thing which was throwing dust in my eyes was ... the server is running
a firewall, even though I stated in the EICW no firewall (have a hardware
one), this I just found out (had to wait serveral hours before the DNS was
changed again).

Apparently the standard windows firewall is still operable (and blocking
port 25).

Well kept me of the street for the day and kept me busy and researching
stuff I have never seen, so in a way I learned alot today.
--
Molter ICT

[Japheth Nolt]

BTW, this newsgroup is for Small Business Financials (used to be named Small
Business Manager). This is not for SBS or Small Business Server.

--
Japheth Nolt
Microsoft SBF Specialist
Landis Computer
www.landiscomputer.com

"Martin Molter" <donotspa...@molter.nl> wrote in message
news:D77D59DB-7494-436C...@microsoft.com...