If you firewall out SMTP into the network except for the gateway then that should help you avoid doing a Demon and getting your outgoing mail relay listed in an RBL even though it's actually a customer's fault.
What's an RBL? I use Demon as an ISP, and with a paid e-mail account I was only able to use demon's SMTP server, rather than the one I paid for... is this due to relaying? Would this also affect me if I had an MTA on my box at home?
Ricardo
On Tue, 12 Feb 2002 13:43:52 +0000 Ricardo Campos wrote:
What's an RBL?
Relay Black List. Used by some MTAs to determine whether or not it should allow relaying of messages to local users from a particular domain or address.
I use Demon as an ISP, and with a paid e-mail account I was only able to use demon's SMTP server, rather than the one I paid for... is this due to relaying? Would this also affect me if I had an MTA on my box at home?
SMTP relays do not allow relaying from external sources to external destinations (well, they shouldn't do anyway - if they do it's down due to an incompetent sysadmin) without some kind of authentication.
I've got Exim configured here to do SMTP AUTH which means that I can post messages through my server from anywhere (like here at work, for instance) as long as I authenticate myself during the sending of the message. Your paid e-mail account's SMTP server should support some kind of SMTP authentication whether it be SMTP AUTH or POP before SMTP which will then allow you to post through it's server.
Regards,
Martyn
-
Martyn Drake -
Ricardo Campos