hello community, well I tell you that I do not know why the posfix has queued messages type span. I also send span from my email accounts that I have in the CWP. I have activated firewall I have activated on the MailServer ClamAV, Amavis & Spamassassin, Requires 1Gb + RAM and the next two recommended options. Some help?
your mail account was compromised , set a more secure password on your mailbox and block ip addresses after 2 or 3 failed login attempts with LFD in the firewall