Author: Dave C. Date: To: Tom Samplonius CC: Kevin P. Fleming, William Craven, exim-users Subject: Re: [Exim] ACL to verify recipient
On Sat, 31 Aug 2002, Tom Samplonius wrote:
>
> On Sat, 31 Aug 2002, Kevin P. Fleming wrote:
>
> ...
> > > What I would like to to is reduce the amount of bounce messages by
> > > verifying that the recipient address is valid on our system before
> > > accepting the message. I have read the ACLs section in the manual and I
> > > am uncertain as to which ACL block to use and what ACL.
> >
> > To do this you will want to use a "verify = sender/callout" acl. This
> > will verify the supposed sender address(es) before accepting the message
> > into your system.
>
> That would do sender verification, but the original poster asked about
> recipient verification.
>
> In Exim 3, recipient verification is as easy as "recipient_verify". You
> can also turn on "sender_verify" to make sure the sender domain exists.
> And then SMTP callbacks can be used to test the sender address versus the
> sender's mail server.