Robert Cates wrote:
> I'm having a hard time understanding this because I thought Exim
checks
> the From/Sender e-mail address (which would be of course
user@???)
> and will then attempt to send the mail.(?)
Relaying is not allowed/prohibited on a sender email base. It is based
on IP
Addresses and/or authentication.
When you have "Road Warriors" then you should use authentication like
this:
(global section)
hostlist auth_relay_hosts = *
(ACL section)
accept hosts = +auth_relay_hosts
message = authentication required
authenticated = *
(authentication section)
plain:
driver = plaintext
public_name = PLAIN
server_condition = "\
# $2 = Username | $3 = password
${if and {{!eq{$2}{}}{!eq{$3}{}} \
{crypteq{$3}{${extract{1}{:} \
{${lookup{$2}lsearch{/etc/exim/.passwd}{$value}{*:*}}}}}}}{1}{0}}"
server_set_id = $2
login:
driver = plaintext
public_name = LOGIN
server_prompts = "Username:: : Password::"
server_condition = "\
# $1 = Username | $2 = password
${if and {{!eq{$1}{}}{!eq{$2}{}} \
{crypteq{$2}{${extract{1}{:} \
{${lookup{$1}lsearch{/etc/exim/.passwd}{$value}{*:*}}}}}}}{1}{0}}"
server_set_id = $1
Of course, you need at least plaintext authentication compiled in.
(I use htpasswd from apache or mini_httpd to maintain the user's
passwords.
For simplicity reasons, most users share the same password for /sending/
mail.)
--
Ben
