/var/log/maillog.  Also examine the headers of the forged mails, and look
for headers like sender / x-sender (in pine / mutt), x-apparently-from etc.

If the forger is logged into your server and is using pine to send the
mails, you'll also see something like

received from: forger@localhost by krec.ernet.in for <[EMAIL PROTECTED]>
etc.

Post headers and the relevant part of the maillog.  Also examine your login
records (/var/log/secure) and check who was logged in at that time.

Suresh Ramasubramanian   [EMAIL PROTECTED]
Juno.Com Postmaster/Abuse Desk, Hyderabad India
     Phone # +(91-40)332-3274  extn 8815

> -----Original Message-----
> From: Pramodh B N [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, April 13, 2000 9:22 AM
> To:   [EMAIL PROTECTED]
> Subject:      [LIH] SMTP problem
> 
> we have a mail server in our network with 3 mail servers vidur, seeta,
> chaitra..
> the problem is some one is using SMTP to create mails and sending mails in
> others name.. so i want to find out who is doing this.. 
> is there any method by which i can track the person sending the mails
> using SMTP by invoking telnet in port 25 ??
> 
> 

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