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OT: List Ettiquette [ Was: sendmail-milter-spf-1.1.pl script and secondary MX]

2004-01-11 20:53:23


Marc,

Pointing someone to an arbitrary archive page is rude and unhelpful. I
agree, one should always search the archives before posting. IMHO, it
would have been better to point him to a *SPECIFIC* post in the archives
*THEN* politely remind him that it is proper to search the archives before
posting.

-Chuck


On Fri, 9 Jan 2004, Marc Alaia wrote:

To answer your one question, the archives are at:
http://archives.listbox.com/spf-discuss(_at_)v2(_dot_)listbox(_dot_)com/

Marc

-----Original Message-----
From: Alain Knaff [mailto:spf(_at_)misc(_dot_)lka(_dot_)org(_dot_)lu]
Sent: Friday, January 09, 2004 10:50 AM
To: spf-discuss(_at_)v2(_dot_)listbox(_dot_)com
Cc: admin(_at_)asarian-host(_dot_)net
Subject: [spf-discuss] sendmail-milter-spf-1.1.pl script and secondary
MX


Hello folks,

Following a recent article on Slashdot, I decided to give SPF a try.

However, I ran into the following problem: if I install the SPF
milter, it will reject all mail from SPF'ed domains (such as aol.com)
that passed through my own secondary MX. I guess that makes sense,
because my secondary MX is obviously not listed in AOL's SPF list, but
shouldn't there be a way to inform the Milter about my own MX'es?

Example:

 peter(_at_)aol(_dot_)com attempts to send a mail to 
me(_at_)mydomain(_dot_)com

 1. as mx1.mydomain.com is busy, the mail goes to the secondary mx
 (mx2.mydomain.com).
 2. The mail is accepted by mx2.mydomain.com because it does really
 come from one of AOL's approved IPs
 3. Eventually, mx2.mydomain.com wants to forward it to
 mx1.mydomain.com, because that's the machine where the user mailboxes
 are physically located.
 4. However, mx1 refuses the mail, because mx2.mydomain.com is not
 listed

And no, putting an OK for mx2.mydomain.com into /etc/mail/access
doesn't help, apparently the milter's rejection takes precedence.

Similar problems might occur if users have e-mail addresses at
multiple ISPs which they .forward to one of them.

Does anybody know a way of fixing these issues? In other word's, I'm
looking for a way to tell the milter on mx1.mydomain.com that it may
receive accept mail coming from mx2.mydomain.com's IP with any From.

Btw, is there an archive of the mailing list anywhere?

Thanks,

Alain


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-- 
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