Do I need port forwarding on 25 port to send messages?

I'm using CDONTS.Newmail (It is using the local SMTP) in a contact
form on a web server(IIS) which is behind DMZ.

I am trying to figure out why it is not sending the messages.
The machine has private IP and port forwarding is set up for 80 port.

I don't need to receive, but only to send.
In this case - Do I need port forwarding on 25 port if I use the SMTP
for CDONTS.Newmail only.

Thank you in advance,
Rosica

"bu" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed) om...
| I'm using CDONTS.Newmail (It is using the local SMTP) in a contact
| form on a web server(IIS) which is behind DMZ.
|
| I am trying to figure out why it is not sending the messages.
| The machine has private IP and port forwarding is set up for 80 port.
|
| I don't need to receive, but only to send.
| In this case - Do I need port forwarding on 25 port if I use the SMTP
| for CDONTS.Newmail only.
|
| Thank you in advance,
| Rosica

no. the way broadband routers work, you only need to setup ports from the
WAN side. your local side has permissions to send.

ken k

"Ken Kauffman" <(E-Mail Removed)> wrote in message
news:fygRa.7072$zd4.1834@lakeread02...
|
| "bu" <(E-Mail Removed)> wrote in message
| news:(E-Mail Removed) om...
| | I'm using CDONTS.Newmail (It is using the local SMTP) in a contact
| | form on a web server(IIS) which is behind DMZ.
| |
| | I am trying to figure out why it is not sending the messages.
| | The machine has private IP and port forwarding is set up for 80 port.
| |
| | I don't need to receive, but only to send.
| | In this case - Do I need port forwarding on 25 port if I use the SMTP
| | for CDONTS.Newmail only.
| |
| | Thank you in advance,
| | Rosica
|
| no. the way broadband routers work, you only need to setup ports from the
| WAN side. your local side has permissions to send.
|
| ken k
|
|

you **do** need to make sure that (on the box itself, not router) you are:

1) not running firewall software
2) updated the rules for your firewall software

ken k

|I'm using CDONTS.Newmail (It is using the local SMTP) in a contact
|form on a web server(IIS) which is behind DMZ.
|
|I am trying to figure out why it is not sending the messages.
|The machine has private IP and port forwarding is set up for 80 port.
|
|I don't need to receive, but only to send.
|In this case - Do I need port forwarding on 25 port if I use the SMTP
|for CDONTS.Newmail only.

No, but you need masquerading so that it appears to come from the public
address of your firewall. Also many SMTP servers will not accept your
mail if you do not have reverse mapping to a domain name for the
outgoing address.
--

Thanx to everybody for the suggestions and advices!