<div>
Thanks Akhater! you solved my problem but then another new issue comes. &nbsp;I will create a new question on that issue.
</div>


Thanks Akhater! you solved my problem but then another new issue comes.  I will create a new question on that issue.

<div>
title: 550 5.7.1 Unable to relay<br />
<br />
<br />
I am trying to send email from my exchange user to @gmail.com or @hotmail.com..<br />
<br />
But receiving unable to relay error:<br />
I have two receive connectors<br />
<br />
One is<br />
Client EX--------Permission tab--- I select Ananymous Users/Exchange Users/Exchange server and Lagancy Exchange Servers<br />
<br />
Default EX---Permission Group--- Anonymous users/Exchange users<br />
<br />
Kindly help me get rid of this problem<br />
<br />
Rashid Iqbal
</div>


title: 550 5.7.1 Unable to relay


I am trying to send email from my exchange user to @gmail.com or @hotmail.com..

But receiving unable to relay error:
I have two receive connectors

One is
Client EX--------Permission tab--- I select Ananymous Users/Exchange Users/Exchange server and Lagancy Exchange Servers

Default EX---Permission Group--- Anonymous users/Exchange users

Kindly help me get rid of this problem

Rashid Iqbal

<div>
<div class="content wysiwyg-content">
i have exchange server 2010 serving my company domain; example.com<br />
<br />
on top of that we have sub domain apple.example.com, email service hosted by external party.<br />
<br />
right now i have issue when amy@example.com sending email to amy@apple.example.com with error &quot;Unable to relay for amy@apple.example.com<br />
Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept e-mail from certain senders, or another restriction may be preventing delivery.&quot;<br />
<br />
DNS forward lookup zone created for example.com contain www and mail.<br />
we also have apple.example.com zone for www.<br />
<br />
<br />

</div>
</div>


i have exchange server 2010 serving my company domain; example.com

on top of that we have sub domain apple.example.com, email service hosted by external party.

right now i have issue when amy@example.com sending email to amy@apple.example.com with error "Unable to relay for amy@apple.example.com
Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept e-mail from certain senders, or another restriction may be preventing delivery."

DNS forward lookup zone created for example.com contain www and mail.
we also have apple.example.com zone for www.




Exchange 2010 : Unable to relay email

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.

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.