Success:

When using the mailserver 74.203.194.28 (mkemail2.mortara.com);

Jun 10 12:47:27 res2 sm-acceptingconnections[22381]: o5AAlQE2022381: from=<Bonnie.Scholten@mortara.com>, size=7376, class=0, nrcpts=1, msgid=<6AA972A2448C6D40B2756B1A1B0F00AF46A224CE75@mkemail.mortara.com>, proto=ESMTP, daemon=MTA, relay=mkemail2.mortara.com [74.203.194.28]
Jun 10 12:47:27 res2 sm-acceptingconnections[22381]: o5AAlQE2022381: to=<f.baijens@mortara.nl>, delay=00:00:01, xdelay=00:00:00, mailer=virthostmail, pri=127376, relay=mortara.nl, dsn=2.0.0, stat=Sent (o5AAlRO0021199 Message accepted for delivery)

The e-mail message from 74.203.194.28 has been succesfully sent and delivered.

---

Failed:

When using the mailserver 10.30.16.65 (mkemail.mortara.com) the domain mortara.nl can not be resolved;

#550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ##

Diagnostic information for administrators:
Generating server: mkemail.mortara.com
applicatie@mortara.nl
#550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ##
Original message headers:
Received: from mkemail.mortara.com ([10.30.16.65]) by mkemail.mortara.com
 ([10.30.16.65]) with mapi; Thu, 10 Jun 2010 05:46:07 -0500
Content-Type: application/ms-tnef; name="winmail.dat"
Content-Transfer-Encoding: binary
From: Bonnie Scholten <Bonnie.Scholten@mortara.com>
To: "'applicatie@mortara.nl'" <applicatie@mortara.nl>
Date: Thu, 10 Jun 2010 05:46:07 -0500
Subject: Test 2
Thread-Topic: Test 2
Thread-Index: AcsIiiGuQvB//mk/SYaiVgWyODFI+w==
Message-ID: <6AA972A2448C6D40B2756B1A1B0F00AF46A224CE73@mkemail.mortara.com>
Accept-Language: en-US
Content-Language: en-US
X-MS-Has-Attach:
X-MS-TNEF-Correlator: <6AA972A2448C6D40B2756B1A1B0F00AF46A224CE73@mkemail.mortara.com>
MIME-Version: 1.0