Dear Support, Hello, again Since a few days ago during my vacations, I had received a Linode Message about SPAM from one of my Servers. (mail.sofihacloud.com.ar) now, I'm thinking update my /etc/postfix/main.cf with the following .. anvil_rate_time_unit = 30m smtpd_client_message_rate_limit = 100 smtpd_client_recipient_rate_limit = 500 My question is .. Works Fine with ISPConfig 3.0.5 SP8 ? I'll appreciate your cooperation. Thanks Nestor Mazza
I guess these settings should be ok for an ispconfig server. Did you check how the spam was sent and were you able to fix that, the most likely spam source is a hacked website, you should be able to find the originating php script by inspecting the mail headers of a spam mail, another possibility is a hacked email account or an account with a weak password, this can be identified by looking at the authentication header of the message.
Hello, Thanks for your answer I have solved the issue, my last answer to Linode was. 1) What was the source of the issue? SPAM from one of my Clients, configraf, the source was malware and virus in two of their workstation. 2) What steps did you take to resolve this issue? Remove all the email passwords, Setup new passwords for all accounts, Disable remote access Stop SMTP service for their accounts 3) What steps did you take to prevent this from occurring again? Eset Smat Security Suite 9 for all the workstations. Scanned all the workstations and Finally add in my main.cf of Postfix, the following ... anvil_rate_time_unit = 30m smtpd_client_message_rate_limit = 100 smtpd_client_recipient_rate_limit = 500 Update some packages on my CentOS 6.7 Nestor Mazza
