Too bad xmail doesn't have natively spf-support yet, many other mailers do:
http://www.openspf.org/Implementations
Here's a description of my solution of SPF with xmail:
I tried to use the xm-spf.pl, but perl reported some errors about
a missing component or so. Then I found a package named "spfquery"
in the Debian repository, it's an executable (or maybe just a perl script?).
So I managed to write a small filter programm (for filters.pre-data.tab) in
C/C++,
and from within that I'm calling the spfquery program with the right parameters.
This works well. I can recommend it.
It needs just 3 parameters (all supplied by xmail to the filter), like so:
spfquery --ip=x.x.x.x [email protected] --helo=hostname.com
and returns a few lines where the first is the status, like "pass", "fail",
"softfail" etc.
For more info one should consult the man page of spfquery.
But: one has to do some reformatting of the params, for example stripping off
the braces from the ip "[x.x.x.x]"
And here is an spf tester:
http://www.kitterman.com/spf/validate.html
Hope this info helps others wanting to add SPF-protection to their xmail server.
But beware: this stuff is IMHO very advanced stuff, one needs some experience
with DNS records, and some experience in writing a filter, ie. programming.
So, my advice: if possible just hire someone who already has experience in this
stuff and xmail.
cu
uenal
Edinilson - ATINET wrote, On 05/21/2013 09:26 PM:
Below a message from Davide about SPF:
------------------------------------------
On Thu, 29 Jan 2009, Ralf wrote:
I'm trying to switch from qmail to xmail.
There I had SPF activated and would like to use SPF also in xmail.
I saw that there is a perl script for SPF
(http://www.xmailserver.org/xm-spf.pl),
but how do I integrate it into xmail?
Suggestion. Leave SPF alone. Nobody is using it and its contribution on
SPAM-cutting on my servers was totally
irrelevant WRT greylisting and RBLs.
The whole SPF project tanked, badly.
- Davide
------------------------------------------
Edinilson
------------------------------------------
ATINET
Tel Voz: (0xx11) 4412-0876
http://www.atinet.com.br
----- Original Message ----- From: "U.Mutlu" <[email protected]>
To: <[email protected]>
Sent: Sunday, May 19, 2013 4:31 PM
Subject: [xmail] SPF update?
Hi Davide & All,
just a question: does the SPF script (xm-spf.pl) cover the
final SPFv1 specification (RFC 4408) as depicted here:
http://www.openspf.org/Specifications
The script is from the year 2004, but the above RFC was ratified in 2006.
Can something go wrong when the script is used nowadays?
Thx
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