Solved

Regarding lost messages from the MAIL SERVER (Red Hat 8.0)

Posted on 2004-09-24
5
213 Views
Last Modified: 2013-12-16
Hi Experts,
Recently,  I have been geeting a very peculiar problem regarding the mailbox of one user. Actually, as sysadmin, I checked for his stored messages in /var/spool/mail but could find messages for just last two days. There is no problem with the mailboxes of other users and even there is sufficient disk space on the mailserver(Red Hat 8.0). Actually, the user in question sometimes log in from different places and he told me that he is not using POP client.How can I track his lost messages ? Secondly, are there any log entries created somewhere when someone stores messages locally on the machine using POP client so that it can be used as a proof for arguement ?
Thanks alot  in advance for co-operation
0
Comment
Question by:mn210
  • 3
  • 2
5 Comments
 
LVL 40

Expert Comment

by:jlevie
ID: 12146472
How does he know that there are "lost messages" as opposed to mail that may have never reached your server? Seems to me that he/she would only know that mail was missing if they had read messages that are no longer there. And in that case I'd want to know what they were using to look at the mail and could it have downloaded the missing messages and deleted them from the server.

If this person isn't using POP how are they reading mail?

In the case where a user claims that they should have received a message and it's not there I check the maillog for evidence that I received something from that sender and find out what happened to it.
0
 

Author Comment

by:mn210
ID: 12147070
The user have already read his messages for last couple of days and when he logged on today, he could retrieve messages for only last two days. As per his words, he is using IMAP for reading mail.

0
 
LVL 40

Expert Comment

by:jlevie
ID: 12147600
In a case like this that only affects a single user Occam's Razor would suggest that the simplest explanation is the most likely. Namely that the user ran a client MUA that downloaded and deleted mail from his/her INBOX. That could be web surfing with browser configured for POP, logging in to the mail server and check mail with "mail' or 'pine', or similar. I'd suggest that you search your logs for this username and see what you can find.
0
 

Author Comment

by:mn210
ID: 12147816
I will check the maillog .Should I check the maillog on  the mailserver or also on the webserver ?
Secondly, I want to save an archive of the messages of all users (which is about of size 180MB).As SENDMAIL deamon is running all the time, can you please advice as how can I achieve my objective ?
0
 
LVL 40

Accepted Solution

by:
jlevie earned 125 total points
ID: 12148178
Check both maillog and messages on the mail server. That should show what forms of access this user employed.

If you want to be certain that the backup is valid you'll want to stop sendmail (service sendmail stop) and disable the IMAP and POP services. It's been so long since I ran a UWash IMAP server that I don't remember the service names, but the'll show up in the output of 'chkconfig --list' as perhaps imap and pop3. Then you just do 'chkconfig imap off', etc.

Once you've made the backup, perhaps like:

cd /var/spool
tar cvzf /path-to/mail-backup.tar.gz mail

you can reverse the mail shutdown steps.
0

Featured Post

Migrating Your Company's PCs

To keep pace with competitors, businesses must keep employees productive, and that means providing them with the latest technology. This document provides the tips and tricks you need to help you migrate an outdated PC fleet to new desktops, laptops, and tablets.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Why VNC doesn't work in Redhat? 11 72
android secure ftp 3 52
lunix and unix command 21 86
Check for Linux process in script 7 48
Network Interface Card (NIC) bonding, also known as link aggregation, NIC teaming and trunking, is an important concept to understand and implement in any environment where high availability is of concern. Using this feature, a server administrator …
Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

828 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question