> Instead of using lsearch to look at a file or dbm,ldap,etc is there a
> way to run an external applications to do a lookup? I need to do a smtp
> query to GroupWise to verify the local_part. I would like to do this
> before excepting the message.
This is a built-in functionality in Exim, do similar to this:
acl_smtp_rcpt = check_rcpt
begin acl
check_rcpt:
accept
verify = recipient/callout
domain = example.com
deny
message = Recipient address unknown
You need to read about "Address Verification" in the documentation:
http://www.exim.org/exim-html-4.30/doc/html/spec_toc.html#TOC282
David
