Re: Roaming

Hi Alex,

> Hello,one and all ...
> I have this sendmail installation that restricts the access to the  POP
> server with the help of the "access" file.
>
> However, now and then I need to connect to the server from outside my
> network and the assigned IP address is unknown at the time.
> This makes POP3/SMTP access impossible from outside the network.
> Can any one help in suggesting a solution for this? I.E. I need
> access to the e-mail system from outside the network yet I need
> to preserve the security of the system
>
> Any help will be greatly appreciated.
> Alex

I'm unclear about whether or not you have DNS set up for your domain. If
not, that comes first.

Next, Allowing pop3 access from anywhere is a simple matter of making sure
your firewall will let it in.

Finally, allowing smtp from anywhere is a little more complex and
inherently insecure. We don't want to create an open relay. A lot of ISPs
have adopted a policy of not allowing port 25 forwarding and insisting on
their customer base using their smtp servers to forward mail, which really
poses no problem. We can set the From: and Reply To: headers at the mail
client level.

If you need smtp authentication, there is pop-before-smtp and SMTPAUTH
that will do it for you.

Good luck.

-- 
Keith Mastin
BeechTree Information Technology Services Inc.
Toronto, Canada
(416)696 6070