Re: OUT OF MEMORY INETINFO: Does anyone have the answer yet?????

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From: m.marien (mm)
Date: 10/11/04 

Date: Mon, 11 Oct 2004 15:04:19 -0600

"JD" <jd@thejd.co.ukSPAM> wrote in message
news:eiK1Ws7rEHA.1164@TK2MSFTNGP10.phx.gbl...
> Ive been round the houses, finally had to re-install, the earlier spam
> serving had generated 1gb of mail failure slips queing up. (hence the
> spiralling Inetinfo)
>
> Whats the difference between "Relay" and "Authentication"
>
> If I tell relay to only allow computers (duh users?) who have succesfully
> authenticated and "Only the [empty] list below" is ticked...then RELAY IS
> STILL POSSIBLE!! without authentication by others.
>
>

Relay is the ability of other computers to send messages through this SMTP
server.

Authentication is the method used to authenticate users. Anonymous
Authentication doesn't count. Although it's in the list, you can't relay
messages if it's the only method available.

With the default settings, the only computer that is allowed to send
messages is the computer the SMTP server is running on. In that case it's
not relaying.

I think you have the settings correct. I would look at the user accounts. Is
it possible that there is an account without a password ? or the guest
account is enabled ? or one of the accounts has been breached ? If you use
basic authentication it quite possible someone has discovered one of your
account passwords.

Is there another way to allow relaying for your system? My SMTP server is
only available to a subnet so I can use that method rather than
authentication. I allow an IP address range to relay and unselect the
Authentcation method. Is that possible with your clients?

Relevant Pages

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