I assume you are running the MercuryE module for SMTP delivery? To get more information please switch on detailed logging in that module, send a short test message, switch off detailed logging again and post the result here.
Mail handler for the domain druifjes.nl is druifjes.nl with IP 72.29.64.240. mail.druifjes.nl is a CNAME for druifjes.nl, mailserver.druifjes.nl is apparently not registered in DNS. IP 72.29.64.240 is available and reports host name dime87.dizinc.com. There is however an Exim mailserver answering there, not Mercury:
220-dime87.dizinc.com ESMTP Exim 4.68 #1 Fri, 07 Dec 2007 20:39:57 -0500
/Rolf
<p>I assume you are running the MercuryE module for SMTP delivery? To get more information please switch on detailed logging in that module, send a short test message, switch off detailed logging again and post the result here.</p><p>Mail handler for the domain druifjes.nl is druifjes.nl with IP 72.29.64.240. mail.druifjes.nl is a CNAME for druifjes.nl, mailserver.druifjes.nl is apparently not registered in DNS. IP 72.29.64.240 is available and reports host name dime87.dizinc.com. There is however an Exim mailserver answering there, not Mercury:</p><blockquote><i>220-dime87.dizinc.com ESMTP Exim 4.68 #1 Fri, 07 Dec 2007 20:39:57 -0500</i>
</blockquote><p>/Rolf
&nbsp;</p>