----- Original Message ----- 
From: <[EMAIL PROTECTED]>
To: "Bill Long" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Wednesday, August 13, 2003 5:46 PM
Subject: Re: [courier-users] Mail getting sent "from" non-existent accounts


> I'll bet you spammers just hijacked that email & they didn't use your
sever as
> the relay.  Have your friend look at the email header & see where the
> email was actually relayed from - prolly not you.
> Having had my personal email hijacked as well as bogus usernames from my
> various mail domains hijacked it's ugly & there's nothing you can do but
> get ready for a LOT of bounces.
>     M
>
> On Wed, 13 Aug 2003, Bill Long wrote:
>
> > Hi all,
> >
> > I have a new courier install going here. I got an email from a friend
saying
> > he got a virus from my server.
> >
> > The email's return address was [EMAIL PROTECTED] I don't have an admin
> > account at all. I have my server set up to relay for authenticated users
> > only.  I did some testing by manually connecting to the smtp port. It
seems
> > my courier setup doesn't check the validity of the sender(mail from:) if
the
> > recipient is on the same domain(rcpt to).
> >
> > Is there a configuration setting set up either a) verify the helo/ehlo
ip
> > address b) verify local sender account exists
> >
> > I'm sure I saw an option somewhere in this last hazy two weeks that
provided
> > for an option to verify the helo/ehlo ip address, but i'll be darned if
i
> > can find it.
> >
> > thanks in advance,
> >
> > bill
> >
> >
> >
> >
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