SPF is compiled into and enabled by default in the QMail Toaster. You
can control the behavior of the SPF function with the numeric value in
the file /var/qmail/control/spfbehavior. The default value is 3, which
is to say that:
a) if a domain uses SPF (and you SHOULD), then the SPF rules will be
enforced
b) if a domain does NOT use SPF, then no blocking will occur.
A complete description of the spfbehavior levels is here:
http://wiki.qmailtoaster.com/index.php/Spfbehavior
Eventually (when someone decides SPF should be required -- whomever
"someone" is, I don't know), the number we put in there will climb to a
4 or 5. But for now, the "agreed upon best use" level is the 3 that the
toaster puts in there as a default. (NOTE: To turn OFF SPF, just change
the value to a 0).
NOTE: The value in the /var/qmail/control/spfbehavior can be overwritten
by the presence of an environment variable SPFBEHAVIOR (if used, it is
probably being set in your tcp rules file (/etc/tcprules.d/tcp.smtp).
So, if you change it but nothing happens differently (not sure if a
QMail restart is required when it changes), then look for the ENV variable.
Another NOTE (and I think this may help someone who a few days ago was
talking about changing the tcp.smtp file and the changes not working)...
if you change the contents of /etc/tcprules.d (including the tcp.smtp
file), you must RE-COMPILE the files to have them take effect. The
command is simple:
# qmailctl cdb
I hope someone finds this useful....
Best Regards,
Dan
Daniel McAllister, President
IT4SOHO, LLC
224 - 13th Avenue N
St. Petersburg, FL 33701
877-IT4SOHO: Toll Free
727-647-7646 In Pinellas
813-464-2093 In Hillsborough
727-507-9435 Fax Only
"When did you do your last backup?"
Ask me about unattended offsite backup solutions...
to protect your business, not just your data!
Ben Mills wrote:
Randraa - Yahoo wrote:
Good Morning for all,
I have some questions about spf on qmail, i already configured spf in
dns, but i don't know how to add this configuration on qmail-toaster.
I use here qmail-toaster+vpopmail+spamassassin+spamdyke.
Other question i have spamdyke running, but i dont know exactly how
to add greylist configurations... wanting a tutorial for this.
Greylisting is easy with spamdyke. Add the greylist dir path to
spamdyke conf, then make the greylist dir. Afterwards you make
subdirectories for each domain (ie example.com). If greylisting
doesn't work, you probably need to change properties on the dirs you
created to allow access.
Ben
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