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Re: [spf-discuss] (SOLVED) SPF blocking e-mails coming from an E-card service server

2007-04-27 13:55:24
On Fri, 27 Apr 2007, dan1 wrote:

>I hope you added some kind of changing hash token to localpart of MAIL >FROM
>that spammers can't use your service as an open bounce relay.

Humm... no not really, and I wouldn't know how to do this.
However I am checking the database to know if the destination addresses are right, and also to know the source e-mail address where it can be the only
The spammer should also probide the exact proper ecard ID, which is
difficult to guess.

That will do it as far as blocking spammers. Good job. You may have problems with recipients who "helpfully" remove all "unneeded" headers from bounces to
make them "friendly".  (I have ... mumbles disgusted insults under breath
against these MTA "programmers")

Hello, Stuart.

Yes, I have been fighting a long time to find any specific and tolerated header which can contain any valid ecard ID number, but didn't find any. however the rfc states that we are allowed to put just any X-.. headers as we want it so I believe that it is rfc compliant.

If somebody knows about a specific header for this, I would be glad to know...


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