Re: [cobalt-users] How to stop SPAM senders?

[David Lucas <david@xxxxxxxxxxxxxxxx>]

At 11:32 AM 5/5/2003, you wrote:
> >
> > With POP Before SMTP you CAN really, as long as you have an email
> > account to verify with, and with POP Before SMTP your clients CAN relay
> > spam and other email through your server.  Without POP Before SMTP your
> > clients CANNOT relay any email through your server.
> >
> > I hope this clears things up a bit.
> >
> > Jeff
> > --
> I think you have it backwards, but can you explain further why turning off
> pop b4 SMTP is more secure? It is my thinking that the user logs in with a
> pop, then that same user can send through that account, not every user that
> tries.
> Without it turned on, it is more likely that any user can send mail through
> an account without logging in with a password.
> I tested it here and if pop b4 SMTP is off, I can pretty much set up an
> email account with my pop server to receive and your SMTP server to send.
> Tom

With it turned off, almost no one can send mail at all.  They can receive.
In order to send, they would have to be set up to relay in the GUI.
Many people turn it off and tell their customers to use their ISP server 
for outgoing mail and only receive mail via their account.

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