How to Tell if Postfix Is Using Postgrey?

Stuart Jansen sjansen at
Tue Dec 16 21:12:15 MST 2008

On Tue, 2008-12-16 at 20:59 -0700, Charles Curley wrote:
> I get my email onto my home computer via fetchmail and imap. So I
> guess the first question is, will greylisting on my computer do me any
> good? I don't know if my WSP greylists or not.

Greylisting only helps when spammers are trying to push spam directly
onto your box. If you're using fetchmail, it does you no good.

> Postgrey is running, and lsof indicates it has a socket out there. I
> don't see that socket listed in postfix' output. How do I tell if
> postfix is using postgrey?

It should be obvious in your mail log. On Ubuntu system, IIRC that would
be /var/log/mail.log

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