Spamming

Hello
The server is currently sending spam, I would like to know how to detect the origin of spam sending in centos please.

Thank you

I found a script in php that sent the mails, I could do it, checking the file / var / mail / root
Is a file that has a lot of information regarding the mails, then use "grep" to search inside the file.

grep "php" root

And it is a matter of reviewing the archives.

Still spamming, any help from where I can check?
Thanks

Check /var/log/mailog, if spam from user with sasl submitted, then you need change email password
if you think spam from phpmailer, you can try install "sendmail-wrapper" you can control over phpmail rate and have different log file.
Or if email not used, disable it completely..

probably you have hacked php scripts, you should check the mail queue and scripts, you also have info about this on the wiki
Don't forget you need to run mod_security "Comodo WAF" recommended to prevent your sites to be hacked

http://wiki.centos-webpanel.com/
http://wiki.centos-webpanel.com/postfix-mail-server-commands
http://wiki.centos-webpanel.com/how-to-resolve-spamming-issue-with-postfix
http://wiki.centos-webpanel.com/tracking-php-script-spam
http://wiki.centos-webpanel.com/track-spam-infected-scripts
http://wiki.centos-webpanel.com/mod_security-for-cwp
http://wiki.centos-webpanel.com/how-to-secure-your-website-from-hacking

Thank you!
The links were very helpful.