CWP/Postfix Security Expert Needed To Stop Spoofing
Budget: $30 – $250 USD
I have 2 servers using CWP and Postfix that are under attack by someone spoofing emails and IPs. My programmer has set several restrictions that appeared to start rejecting spoofed emails, but has not put a 100% stop to the spoof spamming.
Here are just some of the steps he has taken:
smtpd_client_restrictions = reject_unknown_client
smtpd_delay_reject = yes
smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit
smtpd_sender_restrictions = permit_mynetworks, reject_non_fqdn_sender, reject_unknown_sender_domain, permit
I need someone that is an expert at security with CWP and Postfix that can put a complete stop to the email/ip spoofing on 2 servers. I also need a complete report of the steps taken to put a stop to the spoofing/spamming that I can provided to my server hosting company.
Right now, we have Postfix and Dovecot turned off until we can find a solution.
Here are just some of the steps he has taken:
smtpd_client_restrictions = reject_unknown_client
smtpd_delay_reject = yes
smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit
smtpd_sender_restrictions = permit_mynetworks, reject_non_fqdn_sender, reject_unknown_sender_domain, permit
I need someone that is an expert at security with CWP and Postfix that can put a complete stop to the email/ip spoofing on 2 servers. I also need a complete report of the steps taken to put a stop to the spoofing/spamming that I can provided to my server hosting company.
Right now, we have Postfix and Dovecot turned off until we can find a solution.