Hi all,
I have DSL with dynamic IP. A domain name is attached to my IP, and I wrote
a Perl script that updates my DNS whenever that IP address changes.
Unfortunately, my ISP filters incoming port 80 and outgoing port 25 if the
"from" header doesn't contain a "verizon.net" address.
Currently, I receive email at my home computer, but have to ssh to a
friend's machine to send email. It would be much more convenient if,
instead of sshing to his computer to use mutt, I could use mutt from my home
machine and use his machine as an SMTP server.
I read the Exim docs
http://www.exim.org/exim-html-3.20/doc/html/spec_46.html#SEC813
and I believe this is called "outgoing relaying".
The docs say that in order for my friend's computer to be an SMTP server for
my computer, he needs to add this:
host_accept_relay = ip_address/netmask
to a configuration file. A few questions about this:
1. Since I have a dynamic IP but a constant domain name, can this directive
use domain names like this:
host_accept_relay = mail.wavefunction.org
2. Are there any security considerations to be made with this?
3. What config file should this go in?
Thanks!
Pete
