IP's can be spoofed. The only defense against this is at your border router. It needs to be set so it doesn't allow addresses it recognizes as internal addresses to come from the external ports.
Eric S ----- Original Message ----- From: "Ken Innes" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, June 04, 2002 1:00 PM Subject: RE: Re[4]: [IMail Forum] no message header > I have been experiencing the same problem (using Outlook), so I > told Outlook to 'leave messages on the server' so I could read > the header with the IMail client, and found the following: > > _______ > > > >From <[EMAIL PROTECTED]> Tue Jun 04 12:14:15 2002 > Received: from sport158.com [From <[EMAIL PROTECTED]> Tue Jun 04 12:14:15 > 2002 > Received: from sport158.com [66.46.195.18] by ekos.com with ESMTP > (SMTPD32-7.10) id A754C232065A; Tue, 04 Jun 2002 12:14:12 -0400 > X-UIDL: 322766513] by ekos.com with ESMTP > (SMTPD32-7.10) id A754C232065A; Tue, 04 Jun 2002 12:14:12 -0400 > X-UIDL: 322766513 > > ________ > > > What really SCARES me about this, is that the 'from' IP, 66.46.195.18, > is MY IP! A lookup of sport158.com reveals that he is at 210.82.124.68. > My concern is, if this person can fool my server into thinking he is > 66.46.195.18 (ie., the local host), can he turn me into a SPAM > relay even tho' I have relay set to 'Relay mail addreses' and > there are only 3 specific ip's allowed to relay? > > Any way to stop this? > -Ken > > _________________________________________ > > Ken Innes > EKOS Research Associates Inc. > > www.ekos.com > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Sanford > Whiteman > Sent: Monday, June 03, 2002 6:29 > To: Don Weber > Subject: Re[4]: [IMail Forum] no message header > > > > correct, ie.. right click message, choose options, everything is > > completely empty. nothing there. > > Sounds like an Outlook problem for now. You have to check the MBX file > directly, or via WM, to know what IMail is seeing. Maybe leave your > messages on the server for a few days. > > -Sandy > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > to be removed from this list. > > An Archive of this list is available at: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > Please visit the Knowledge Base for answers to frequently asked > questions: http://www.ipswitch.com/support/IMail/ > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > to be removed from this list. > > An Archive of this list is available at: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > Please visit the Knowledge Base for answers to frequently asked > questions: http://www.ipswitch.com/support/IMail/ > Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
