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Hello,<br />
<br />
I want to configure a receive connector on Exchange 2013 to be used for sending e-mail using SMTP with authentication, but I don't want the connector to be used to send e-mail to external recipients (only to domain users addresses). How can I do this?<br />
<br />
The reason i want to do this is to have a receive connector that allows external relay and one receive connector that doesn't allow external relay. This way, I can configure who can send e-mail to external recipients, based on the IP address of the client. But I want to use basic authentication for both connectors.<br />
<br />
I used the below shell command to remove the &quot;accept any recipient&quot; permission for all Authenticated Users:<br />
Get-ReceiveConnector &quot;Receive_Connector_Name&quot; | Remove-ADPermission -user &quot;NT AUTHORITY\Authenticated users&quot; -ExtendedRights &quot;ms-Exch-SMTP-Accept-Any-R<wbr />ecipient&quot;<br />
<br />
However, I noticed that as soon as I execute the above command, the permission group &quot;Exchange Users&quot; is automatically removed from the connector and therefore authentication cannot be used anymore.<br />
<br />
How can I configure this?<br />
<br />
Thanks,
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Hello,

I want to configure a receive connector on Exchange 2013 to be used for sending e-mail using SMTP with authentication, but I don't want the connector to be used to send e-mail to external recipients (only to domain users addresses). How can I do this?

The reason i want to do this is to have a receive connector that allows external relay and one receive connector that doesn't allow external relay. This way, I can configure who can send e-mail to external recipients, based on the IP address of the client. But I want to use basic authentication for both connectors.

I used the below shell command to remove the "accept any recipient" permission for all Authenticated Users:
Get-ReceiveConnector "Receive_Connector_Name" | Remove-ADPermission -user "NT AUTHORITY\Authenticated users" -ExtendedRights "ms-Exch-SMTP-Accept-Any-Recipient"

However, I noticed that as soon as I execute the above command, the permission group "Exchange Users" is automatically removed from the connector and therefore authentication cannot be used anymore.

How can I configure this?

Thanks,

Disable SMTP E-mail Relay to External Recipients for Authenticated Users

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

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

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.