Outgoing SPAM!
Hello,
I am having a lot of problems with my server sending outgoing SPAM. I am using MailEnable Standard in a web hosting environment with the following relay settings:
- Allow relay from authenticated users
- Allow relay from privileged IP ranges (all computers are denied relay rights, except 127.0.0.1)
- POP before SMTP authentication (remember IP address for 20 minutes)
In the security tab for the SMTP connector I also enabled these settings:
- Reject mail if sender address is from an invalid domain
- Authenticated users must use valid sender address
By checking the SMTP logs, I see that the SPAM originates from localhost which is quite normal in a web hosting environment with 500+ domains per server but it's also quite impossible for me to check all the scripts to see if anything is compromised or if anyone is sending it on purpose. Also, the email addresses in the FROM field do not exist on my server and neither do the domains.
Is there any way I could implement a spam filtering solution that would scan outgoing mails?
Can I set a Quota for sent emails per a day?
No response from MailEnabe.com. Is there any idea?
Thank you!