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Remove the current restrictions and select &quot;accept mail from all users&quot;. &nbsp;Then add all the users that shouldn't be able to send mail to that mailbox in the &quot;reject mail from&quot; box.
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Remove the current restrictions and select "accept mail from all users".  Then add all the users that shouldn't be able to send mail to that mailbox in the "reject mail from" box.

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Please at least leave it as an open question, so that maybe someone in the future will happen to find an answer.
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Please at least leave it as an open question, so that maybe someone in the future will happen to find an answer.

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We have a private mailbox on Exchange Server 2003 that is restricted through the settings in Active Directory so that only certain internal users can send to it.<br />
<br />
We want to remove the restriction from all external addresses, while still maintaining it for specific internal accounts.<br />
<br />
Any ideas?<br />
<br />
Thanks!<br />

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We have a private mailbox on Exchange Server 2003 that is restricted through the settings in Active Directory so that only certain internal users can send to it.

We want to remove the restriction from all external addresses, while still maintaining it for specific internal accounts.

Any ideas?

Thanks!


restricting who can send to a mailbox

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

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Active Directory

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.