著者: Tom Samplonius 日付: To: James P. Roberts CC: exim-users 題目: Re: [Exim] AOL blocks SSL/TLS?
On Mon, 22 Apr 2002, James P. Roberts wrote:
> ><snip>
> >I must be missing something, but this seems pointless to me. AOL's
> SMTP
> >relays don't support TLS, because they assume that their internal
> network
> >is just as secure as their relay servers. <snip> Why go through all
> >these contortions to get secure relaying working on your mail server
> for
> >AOL clients, when AOL will automatically relay it all?
>
> Answer: Because I am hosting my customers' domains. For them to be
> able to send mail from their own domain, they need to have my server
> relay it for them, not AOL's. Because I do not wish to be an open
> relay, of course, I require authentication. In order to protect my
> customers' passwords, I require SSL/TLS encryption before
> authentication. They can connect to the internet anyway they like, and
> set up their email client with my server listed as their SMTP server,
> with SSL/TLS and authentication enabled.
When relay servers are configured to relay for an internal network, that
usually means that they will relay all mail.