[SOLVED] Completely Disabling Greylisting - can it be done?

Steve-M

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Sep 8, 2023
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I've been back and forth between using and not using PMG at my organization, the thing that's causing me the most snags is greylisting.

In short, we receive a lot of necessary for production, automated email, that is coming from a randomly generated domain for every message (on an unknown / different every time cellular network block), and the sending server software cannot be configured to reattempt redelivery. This probably accounts for 90% of my mail traffic.

Greylisting seems to catch all of this though, I hadn't heard of greylisting before using PMG, and it seems to be doing its job.

Can I make it *not* do its job? The only setting I've found on my own are the "Use Greylisting for IPv4" and "Use Greylisting for IPv6" on the Mail Proxy > Options setting screen, both of them are unchecked, but according to Administration > Tracking Center page, nearly all of my mail is greylisted.

Is there another "Greylisting = On / Off" setting that I'm missing somewhere?
 
Can I make it *not* do its job? The only setting I've found on my own are the "Use Greylisting for IPv4" and "Use Greylisting for IPv6" on the Mail Proxy > Options setting screen, both of them are unchecked, but according to Administration > Tracking Center page, nearly all of my mail is greylisted.
This should disable greylisting - if in doubt you might want to reboot the PMG to make sure (but I'm quite sure this would not be needed)

else - please post `pmgversion -v` and a bit of the system journal showing such mail (`journalctl --since today`).
 
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Rebooting seemed to resolve the issue, however I would agree that it shouldn't have been relevant.

I'm using to doing that on Windows workstations, but my Linux machines I've been kind of like "it's a VM, I didn't change hardware, why would I ever need to reboot this thing?" :)

Thanks for your help.