1

Topic: Restricting backscatter spam mails

==== Provide required information to help troubleshoot and get quick answer ====
- Linux/BSD distribution name and version:
- iRedMail version and backend (LDAP/MySQL):
- Any related log? Log is helpful for troubleshooting.
====
Centos 5.6, iRedmail 0.7.2 , iRedProLdapAdmin 1.6.3

Hi Zhang,

Some of our system in our network is sending spam mails, how to track the system from which spam mails are originating, or is there any way to drop mails coming from unknown senders.

Regards,
Mohan==== Provide required information to help troubleshoot and get quick answer ====
- Linux/BSD distribution name and version:
- iRedMail version and backend (LDAP/MySQL):
- Any related log? Log is helpful for troubleshooting.
====

Post's attachments

topsenders.png
topsenders.png 12.59 kb, file has never been downloaded. 

You don't have the permssions to download the attachments of this post.

2

Re: Restricting backscatter spam mails

Hi Mohan,

You should first check Postfix log file to find out spam related info. For example, sender email address, smtp server address, etc.

3

Re: Restricting backscatter spam mails

Please describe your situation better.

If I understand correctly, you have PC stations in the same network as your email servers?

If this is indeed the case, are you sure they are sending spam through your mail server?
Most spam bots/trojans are sending spam from infected stations directly, bypassing email servers.