I am using RH5.0 with sendmail for my mail relay. To test my mail relay (ci2.afnet.net), I sent an email to my account with another ISP. Therefore: [EMAIL PROTECTED] ---> ci2.afnet.net ---> ci1.africaonline.co.ci ---> [EMAIL PROTECTED] [Sender] [my mail relay] [ISP mail hub] [Recipient (me)] Below is the header of the received email by lmais@africaonline. My concern is about the second "Received:" line where is say "may be forged". Why is ci2.afnet.net claiming that the message is comming from (root@[208.160.145.131]). I have not changed anything in the standard sendmail.cf which comes with RH 5.0. Please note that we are using similar hostnames as the ISP (ci1, ci2), so do not get confused when reading this email. Thanks in advance for your input. ------------ Received: from ci1.africaonline.co.ci (ci1.africaonline.co.ci [199.103.178.1]) by africaonline.co.ci (8.8.6/8.8.6) with ESMTP id KAA05201 for <[EMAIL PROTECTED]>; Thu, 21 May 1998 10:46:55 GMT Received: from ci2.afnet.net (root@[208.160.145.131] (may be forged)) by ci1.africaonline.co.ci (8.8.6/8.8.6) with ESMTP id KAA14333 for <[EMAIL PROTECTED]>; Thu, 21 May 1998 10:47:26 GMT Received: from lisa.afnet.net ([208.160.145.147]) by ci2.afnet.net (8.8.7/8.8.7) with SMTP id KAA20390 for <[EMAIL PROTECTED]>; Thu, 21 May 1998 10:47:26 GMT Message-ID: <[EMAIL PROTECTED]> Date: Thu, 21 May 1998 10:54:15 +0100 From: Test Mail <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] X-Mailer: Mozilla 3.0 (Win95; I) MIME-Version: 1.0 To: [EMAIL PROTECTED] Subject: Testing Mail Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii X-UIDL: 131aa57639753ea980ad79b07b3a2394 X-Mozilla-Status: 2001Received: from ci1.africaonline.co.ci (ci1.africaonline.co.ci [199.103.178.1]) by africaonline.co.ci (8.8.6/8.8.6) with ESMTP id KAA05201 for <[EMAIL PROTECTED]>; Thu, 21 May 1998 10:46:55 GMT Received: from ci2.afnet.net (root@[208.160.145.131] (may be forged)) by ci1.africaonline.co.ci (8.8.6/8.8.6) with ESMTP id KAA14333 for <[EMAIL PROTECTED]>; Thu, 21 May 1998 10:47:26 GMT Received: from lisa.afnet.net ([208.160.145.147]) by ci2.afnet.net (8.8.7/8.8.7) with SMTP id KAA20390 for <[EMAIL PROTECTED]>; Thu, 21 May 1998 10:47:26 GMT Message-ID: <[EMAIL PROTECTED]> Date: Thu, 21 May 1998 10:54:15 +0100 From: Test Mail <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] X-Mailer: Mozilla 3.0 (Win95; I) MIME-Version: 1.0 To: [EMAIL PROTECTED] Subject: Testing Mail Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii X-UIDL: 131aa57639753ea980ad79b07b3a2394 X-Mozilla-Status: 2001 -- PLEASE read the Red Hat FAQ, Tips, Errata and the MAILING LIST ARCHIVES! http://www.redhat.com/RedHat-FAQ /RedHat-Errata /RedHat-Tips /mailing-lists To unsubscribe: mail [EMAIL PROTECTED] with "unsubscribe" as the Subject.