Re: [exim] Verify outgoing email while using a smarthost

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Author: Lena
Date:  
To: exim-users
Subject: Re: [exim] Verify outgoing email while using a smarthost
> From: Jason

> Is it possible for Exim to verify outgoing mail when using a smarthost?
> Specifically, I'm looking to have Exim verify (using dnslookup) that the
> domain exists for the recipient.


Besides the router, you need "verify = recipient" (without callout)
in rcpt ACL before accepting the submitting message.

> If the domain returns NXDOMAIN (or some
> other DNS error), defer it


If the message is submitted by a Windows MUA, it may act weird in response to
defer.