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Thanks for the info. I thought that was the case, but thought it wouldn't hurt to get someone else's eyes over it.
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Thanks for the info. I thought that was the case, but thought it wouldn't hurt to get someone else's eyes over it.

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Hi, I have a staff memeber who is trying to send email to someone outside the organisation, and they keep getting the below notification. They are trying to send to garyoh, but from the &quot;ultimately generate by&quot; part I am assuming there is a redirection or forward going on? <br />
<br />
Also when I do an DNS, and MX lookup on mxtoolbox it says there are no A or MX records?? Their website is currently working and I can ping their hostname and it resolves an address. <br />
<br />
Could it something on our end blocking the connection?<br />
<br />
<b>The address to which the message has not yet been delivered is:<br />
<br />
garyoh@aqnpsolution.com.au<wbr /><br />
(ultimately generated from owendavey@aqnpsolutions.co<wbr />m.au)<br />
Delay reason: SMTP error from remote mail server after RCPT TO:&lt;garyoh@aqnpsolution.co<wbr />m.au&gt;:<br />
host 192.168.101.99 [192.168.101.99]: 451 4.3.0 &lt;garyoh@aqnpsolution.com.a<wbr />u&gt; Temporary user lookup failure</b>
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Hi, I have a staff memeber who is trying to send email to someone outside the organisation, and they keep getting the below notification. They are trying to send to garyoh, but from the "ultimately generate by" part I am assuming there is a redirection or forward going on? 

Also when I do an DNS, and MX lookup on mxtoolbox it says there are no A or MX records?? Their website is currently working and I can ping their hostname and it resolves an address. 

Could it something on our end blocking the connection?

The address to which the message has not yet been delivered is:

garyoh@aqnpsolution.com.au
(ultimately generated from owendavey@aqnpsolutions.com.au)
Delay reason: SMTP error from remote mail server after RCPT TO:<garyoh@aqnpsolution.com.au>:
host 192.168.101.99 [192.168.101.99]: 451 4.3.0 <garyoh@aqnpsolution.com.au> Temporary user lookup failure

Email Delivery Issues

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

An email client, email reader or more formally mail user agent (MUA) is a computer program in the category of groupware environments used to access and manage a user's email. A web application that provides message management, composition, and reception functions may internally act as an email client; as a whole, it is commonly referred to as webmail. Likewise, email client may be referred to a piece of computer hardware or software whose primary or most visible role is to work as an email client. Email clients can also have other systems, like calendars, notes and contact managers.