6 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Mail getting sent...
FromSent OnAttachments
Bill LongAug 13, 2003 5:02 pm 
tros...@juniper.netAug 13, 2003 5:50 pm 
Bill LongAug 13, 2003 7:21 pm 
Jeff JansenAug 14, 2003 7:09 am 
Bill LongAug 14, 2003 9:58 am 
Mitch (WebCob)Aug 15, 2003 12:08 am 
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Subject:Re: [courier-users] Mail getting sent "from" non-existent accountsActions...
From:Bill Long (segf@longboys.net)
Date:Aug 13, 2003 7:21:44 pm
List:net.sourceforge.lists.courier-users

----- Original Message ----- From: <tros@juniper.net> To: "Bill Long" <segf@longboys.net> Cc: <cour@lists.sourceforge.net> 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 adm@longboys.net. 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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