We are currently working with proxmox mail gateway 5.0-61 and I am experiencing difficulties receiving some emails from clients that are listed on the blacklists. Could you inform some rule so that if the email is on the whitelist it does not check DNSBL Sites, because the reason for rejected messages are usually these "blocked using zen.spamhaus.org".
Thank you in advance for everyone's attention.
Thank you in advance for everyone's attention.