[exim] Re: bounce messages and their potential misuse

On 2006-03-31, Marc Sherman <msherman@???> wrote:

>> Now when we say "senders' addresses", which headers are we talking
>> about? For example, I send mails from my home computer with various
>> from-addresses (mainly one for work and one for personal stuff), none
>> of which is associated with my ISP.
>
> Either MAIL FROM, verified or fixed up with SMTP AUTH (such as Exim's
> own submission mode), or some other verification method such as tracking
> dynamic IP assignments to subscribers at the ISP.

I think most of them just rely on the IP address that the mailhub is
receiving the message from.

As I understand it, the MAIL FROM address is what ends up in the
Sender: header and is where bounces go, right? So I'd rather not have
my mailhub modifying it. When I send an e-mail from home with my work
address in the From: header, for example, I want any bounces to go
back to my work address. I don't want bounces going to my
ISP-provided mail account, because I don't use it (because their mail
system is crap).