On Mon, May 18, 2015 at 10:52:52AM +0200, Peter N. M. Hansteen wrote:
> On Mon, May 18, 2015 at 10:05:45AM +0200, Alex Greif wrote:
> > But in some cases, the sender mail server tried so often from different
> > SMTP IPs, and finally gave up with an error to the sender. Then the sender 
> > and
> > receiver persons are quite unhappy, and a lot of time is vasted.
> 
> In most cases the MXes will be in an identifiable IP address range such as
> 194.54.104.64/26 (just a random example) you can add to a PF table
> 
> > Another problem with IPs is that the SMTP servers often change, so that IPs 
> > get
> > obsolete, or new ones are set up.
> 
> Again, unless they jump to addresses in totally unrelated ranges, something 
> like
> the nospamd example in the spamd man page should do the trick. (I make my 
> nospamd
> file available at http://www.bsdly.net/~peter/nospamd if you want to start 
> from a
> working examplei in addition to the rules from the man page)
> 

thanks, I will do it as you suggested.
And will keep an eye on "spamdb|grep GREY" output.

Alex.

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