Need to open port 25

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Guest

My ISP says that in order for us to get our email on our server we need to
open port 25.

Can anyone help me with this, we do not have a firewall at the moment.

thanks
 
andyc209 said:
My ISP says that in order for us to get our email on our server we need to
open port 25.

Can anyone help me with this, we do not have a firewall at the moment.
Click to expand...

It sounds like you want to run a POP server on your machine. POP
listens on port 25 for connections from other machines in order to
deliver mail so that it can put it in the right mailbox.

With no firewall or network router box, your machines is exposed to the
network and nothing will be blocking any port. (Not the safest
configuration, however.)
 
Port 25 is used by SMTP (110 is for POP).
What Windows version do you have on your machine and what kind of mail
server do you have?
 
Andrei said:
Port 25 is used by SMTP (110 is for POP).
What Windows version do you have on your machine and what kind of mail
server do you have?
Click to expand...
I stand corrected. Now, why does the ISP want to send mail through the
OP's machine? I do not allow that because that's how spammers work.
The spam will trace back to the OP's machine. If fact, may be this
should be reported to the internet gods for investigation.
 
William said:
I stand corrected. Now, why does the ISP want to send
mail through the OP's machine? I do not allow that because
that's how spammers work. The spam will trace back to the
OP's machine. If fact, may be this should be reported to
the internet gods for investigation.
Click to expand...
They don't. Sounds like they are trying to be helpful.
Either they are agreeing to act as a mail relay FOR the
client (so that mail gets held at the ISP if the client is
down) or they are willing to let the client (who is on the
ISP's network after all) accept mail directly on the SMTP
port, bypassing the ISP's mail server totally. Either way,
the email will go into the client's mailserver via port 25.
hence the need to open port 25.

Cheers,

Cliff
 
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