DNSBL - can we quarantine?

[albans]

Hi,

I'm wondering if it's possible to quarantine emails blocked by DNSBL.
I understand that DNSBL is part of pre-checks, but it would be really useful to quarantine these too as some legit emails are being blocked, while the recipient is not being informed.

Thank you.

 

[Hannes Laimer]

Hey,

not really. You could give dnsbl_threshold[1] a try, but with these checks postfix doesn't even accept the mail, there is nothing to put into quarantine so to say. There's also a SMTP whitelist[2], but for DNSBL you have to enter IPs. So a combination of tweaking the threshold and maybe adopting your rule-system a bit should get you somewhat close to what you are looking for.


[1] https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#pmgconfig_mailproxy_options
[2] https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#pmgconfig_mailproxy_whitelist