SMTP RELAY! help??? 1

[matcom]

ok. first of all, i am not an IT admin (programmer) but because he is performing a network upgrade this week, i'm it.

anyway, our smtp is being relayed off of big time. our web box is seperate from the rest of the network and our email is being handled by an Exchange server.

i HAVE to run smtp on the web server to accomodate asp forms. when i finally found the properties for the default SMTP server, we are allowing relaying ONLY from a few IP's.

my question is (and i THINK this is our problem) that each one of our web sites has its own IP and ALL of those IP's are allowing relaying.

first of all, is this NECESSARY and IS THIS THE CAUSE of the relaying? can i delete these IP's from SMTP relaying without affecting anything and will this SOLVE our relaying problem?

i hope you can help. our outgoing email now takes an hour to reach its destination!!!

thank you TONS

 

[RiezalR]

It would be better to have IP filtering for your SMTP relays. If not, people would be using your SMTP server as a launchpad for sending spoofed/fake mail.

I don't actually understand the problem that you have. But if you delete IP's from SMTP relaying, that means that those IP's will no longer be allowed to use that SMTP server to relay mail. Basically they won't be able to send mail via that SMTP server.

 

[skotman]

Are you getting messages back saying that people are relaying? how do you know your being relayed off of?

Scott Heath

http://www.scottspad.com

AIM: orange7288

 

[matcom]

yeah, people are getting messages back and we can monitor our exchange server through the firewall.

i went ahead and deleted all of the ip's from the relay settings (all of our own web site ip's)

so far it doesnt' seem to adversly affect anything (our web forms still work, etc... using my asp files). SMTP is still turned on (as it has to be for asp to work) so i think maybe the problem is solved.

if you have any other knowledge, it would be appreciated as always.

thanks

 

[skotman]

If your web box is seperate monitoring your exchange server isn't going to tell you anything, unless it's whats really being used to relay.

Now that it's probably fixed start converting to CDOSYS. It's alot of work but the code is pretty simple, see my post in your other thread from yesterday.

Scott Heath

http://www.scottspad.com

AIM: orange7288

 

[matcom]

i am planning on it Scott.

and thanks a TON for your help both yesterday and today