Re: More sorbs blacklisting [signed]
John Kelly wrote:
On Mon, 19 Jun 2006 20:06:04 +1000, "Charles Chambers [c]"
my settings on SpamPal protecting my personal mail account are set to
block according to *all* available blacklist sources ... my spam folder
is fewer than a dozen pieces a week.
More than five is a bad week for me. I use:
1) strict DNS checks (matching forward/reverse)
I understand that checking for the existence of a reverse mapping may be
a clever thing, but the reason for forward/reverse matching is not
obvious to me: Imagine a user who only has one public IP at his
"all-in-one" mail-web-server. His reverse is www.mydomain.tld to make
people with traceroute happy, but his mx is mx1.mydomain.tld. To get
through your spamfilter, the reverse has to be changed to
mx1.mydomain.tld - that looks not nice in the traceroute ...