On Wed, 23 Jun 1999, Al Fisher wrote:
> I'm using an external database to validate incoming email addresses. I
> currently do it in sendmail like this:
>
> Mmymailer, P=/usr/local/bin/procmail, F=lsDFMA5:/|@qSnE9, S=10/30,
> R=20/40,
> T=DNS/RFC822/X-Unix,
> A=procmail -t -f $g -m MYUSER=$u@$h /etc/procmailrc $h $g $u
>
> .. with a system-wide procmail recipe which calls another program which then
> validates the address using Oracle etc etc. I can do this easily becase I
> have the envelope address in the MYUSER variable.
>
> I'm pretty new to exim and I'm very impressed, particularly with its address
> re-writing capabilities, but I can't work out how to do this & I'm in a bit
> of a hurry. Any pointers in the right direction would be much appreciated.
Set receiver_verify; that passes incoming addresses through the
directors and routers. For special verification, you can set verify_only
on directors (or routers) and then get them to do what you want. For a
bespoke program, you would have to set up a smartuser director which
calls a Perl script in, say, the expansion of the new_address option.
However, if you can access your Oracle via LDAP, then you can just set
up an aliasfile director that does a direct LDAP lookup for
verification. Also check out no_more.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
--
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http://www.exim.org/ ***
