Open Relay in Exchange 2000 2

[Monty99]

Hello,

my ISP just phoned me to say that I had an open relay, when I thought I hadn't!
What is the correct way to close an open relay on Exchange 2000? Some instructions that I've got don't allow me to send mail out, and others seem to be allowing relay. Can anyone help?

Thanks

 

[cfwdude]

Check out this link. You can also test your mailserver from the home page on this site to see it is still an open relay after making the changes.

http://ordb.org/faq/#how_to_close

Good luck.

 

[billieT]

This might be a more useful link -

http://www.microsoft.com/technet/tr...chnet/security/prodtech/mailexch/excrelay.asp

I just restrict connections to my server from machines specifically on our IP address range - easy.

 

[Marcs41]

And disable sending NDR's back out ! The solution is out there.

 

[Monty99]

Thanks for your replies....think it is done, except for last item from MARCS41
Where and how do I stop NDR's being sent back out?


Regards,
Monty99

 

[brontosaurus]

Global Settings\Internet Message Formats\Default\Properties\Advanced....

 

[Marcs41]

The Non delivery reports are in the internet connector The solution is out there.

 

[Marcs41]

Sorry, that was for 5.5

for 2000:

http://support.microsoft.com/default.aspx?scid=kb;en-us;294757

http://support.microsoft.com/default.aspx?scid=kb;en-us;276321

The solution is out there.