On Sun, 9 Aug 2009, Res wrote:
.... if I'm in charge of the network for say this countries 5th largest
ISP, why SHOULD I allow customers of say our countries largest, or 25th
largest relay their mail via my systems...
IMNSHO You shouldn't. You should only allow *your* customers with pop
e-mail accounts on *your* servers to send mail. Of course, if they have
mail on your system, but have a connection to the net through a 'largest'
ISP, then naturally, everything flows more smoothly if they use their
provider's smtp server.
Btw, the submission standard exists for >10 years, it would be nice if you
could support your customers connecting from anywhere, insteaad of
*sigh* for end users, not going to happen, ever, not whilst i'm in charge,
and sorry to say but if you ever move to Australia, youll find its a common
attitude amongst the large, medium and most smaller ISP's here.
To be truthful, I have been doing this by default here, as well, but find
that it creates some problems for some users. So I am thinking about
opening up SMTP-AUTH ports. Trouble is (and its semi-relevance to this
list) I have to wonder if I am opening myself up to a significant risk of
having one of my user's passwords hijacked and used to send spam?
Will I be just opening up opportunities for spammers to use my server with
stolen passwords, or is this a relatively rare occurence?
- Charles, HWCN
