On Fri, Apr 28, 2006 at 08:41:22AM -0400, Dirk the Daring wrote:
> 1) Is filter_recipient called for each RCPT TO: (as would
> appear to be the case), or at DATA?
At RCPT To:
> 2) The documentation states that if filter_recipient returns
> DISCARD, the message is discarded for ALL Recipients. Is
> this also true of REJECT (as would also appear to be
> the case)?
Nope, REJECT will reject that single recipient, not any other recipients.
We do that all the time, works fine. Why do you think a REJECT here
stops the entire email?
Some MUAs will abort the entire transmission, when one of the RCPT TOs
fail. That is to be construed as a feature. MTAs will do "the right
thing" and continue with the email for the other recipients (if any).
> 3) Since it looks like filter_recipient can't be used to
> selectively (on a per-Recipient basis, allowing to some
> but not all) reject/discard a connection, can I have it
> alter a given Recipient envelope address so I can look
> for that "flag" in filter_begin and remove the
> Recipient there?
That's not necessary, and besides, you cannot alter a recipient within
filter_recipient. If you must pass flags to filter_begin, you have to
pass those flags via a file (for example by putting things in a hash
like %mysettings that you Storable::nstore(\%mysettings, "Settingsfile");
> My idea is something like (where "recipient_valid" is a function
> I've written to check address validity, returning FALSE for a *valid*
> address and TRUE for an *invalid* one):
>
> [....existing filter_recipient code...]
> if ( recipient_invalid($recipient) )
> {
> $recipient = "[EMAIL PROTECTED]";
That won't work, just return('REJECT', "Recipient invalid");
> return ('CONTINUE', "OK");
> }
> [...existing filter_recipient code....]
>
> and then
>
> [....existing filter_begin code...]
>
> [start loop to step thru @Recipients; $check is index...]
> if ( $Recipients[$check] =~ "invalid" )
Ugh. You really do such stuff in production code? I hope nobody
has the idea to start a JoinValidation project at your site to
scrutinize SQL code, and creates an email address after the
project name.
But, anyway, this is not necessary.
> [...some code to check if there are any valid Recipients left...]
> if ( $no_valid )
> {
> return('REJECT', "Dictionary SPAM rejected");
> }
You don't ever get here if all recipients are REJECTed ;)
> Feedback? Sane? Insane?
The latter :)
--
Jan-Pieter Cornet <[EMAIL PROTECTED]>
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