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FXS vs FXO: what’s the difference?

Many businesses today are implementing Voice over Internet Protocol (VoIP) phone systems in their office, to replace traditional phone lines – and for good reason. VoIP provides significant advantages, including the ability to make and receive calls from anywhere and at any time, cost savings, a more reliable signal, and more. But before you start […]

How to respond to negative feedback online

From restaurants to sports equipment vendors, no business is immune from negative feedback online. With more and more people spending hours on the Internet every day, customers are quick to voice their opinions about businesses. And their comments aren’t always positive. You might wonder how do you respond when you receive a negative review from […]

4 benefits of online scheduling

As healthcare practices across the nation continue to find out, patients place ever-diminishing levels of importance on care alone. While it is and will forever be a factor that influences a person’s decision, convenience has become another key area patients look at when choosing a healthcare facility. Online scheduling, in particular, has become something more […]

Things to consider when buying a new computer

Purchasing a new computer can be a daunting task, especially if you’re not familiar with its components. You’ll want to make sure you make the right choice so you don’t end up buying one that becomes obsolete within just a few months. How much money should you spend? Which model is the best for you? […]

How boring brands can win on social media

As a business owner, you may think social media isn’t worth the effort. You may have dabbled in Twitter, Facebook, or LinkedIn and seen minimal (if any) results. Of course there are other businesses that do well on these platforms – like Nike or Google – you may think. But these are exciting brands! What […]

Microsoft launches Office 2016 for Mac

Mac users who have been using Office 2011 now have a reason to smile: Microsoft finally released the latest Office 2016 for Mac in September. Office 2016 is packed with powerful new features for Microsoft’s core applications, including Word, PowerPoint, Excel, and Outlook, all of which are designed to run and perform seamlessly on the […]

Best storm preparation is communication

There is nothing worse for a company and its customers than being forced to close because of inclement weather. And with winter almost upon us once again, now is a good time to make sure your business continuity plan is prepared for anything and everything mother nature is looking to throw your way. By communicating […]

How to enable relaying for external clients on SBS 2008/2011 and or Exchange 2007/2010 with different sending email address’s

I sometimes come across customers that would like to relay email through their Exchange Sever from external clients and maybe use a different sending address.  Here is how I configure this. First, we will create a new receive connector via the Exchange Powershell. To do so, open up the Exchange Management Shell (powershell) Once this loads, use the following command New-ReceiveConnector -Name ‘ExternalRelay’ -Usage ‘Client’ -RemoteIPRanges ’0.0.0.0-255.255.255.255′ -Server ‘SERVER’ Here is an example: Now we have created the Receive Connector, and you will see this in the Exchange Management Console. Let’s check our work, even though it was only one line of text Now we can verify the network, authentication, and permission groups settings to see how a Client receive connector has been configured. If you go to the properties, you will see that it’s listening on port 587 , that it has enabled Basic authentication over TLS, and that it is only allowing Exchange Users (Authenticated Users) to connect. You will see all of this by looking at the connector in the Exchange Management Console. NOTE: Make sure that port 587 is open in your firewall or this will not work for external users Further inspection of the AD permissions on the receive connector show that authenticated users have the ms-Exch-SMTP-Accept-Any-Recipient right. This is the correct relay permission and you should never have it be owned by anonymous users. You can view and verify this by running the following powershell command: Get-ADPermission “ExternalRelay” | where {$_.ExtendedRights -match “ms-Exch-SMTP-Accept-Any-Recipient”} | fl You will see the output looking like: If it says under user “NT AUTHORITYANONYMOUS” then you have an open relay. Stop and delete the connector! Next, we need to set some additional parameters to make this work. To allow the authenticated user to be able to send email with a different address, we will use the following powershell command   Get-ReceiveConnector ExternalRelay | add-ADPermission -User “NT AUTHORITYAuthenticated Users”-ExtendedRights “ms-Exch-SMTP-Accept-Any-sender” looking like: If you are running an SBS 2008 or SBS 2011 server, this also applies: If you have successfully run the Internet Address Management Wizard from the SBS Console, then your Exchange certificate for TLS has already been installed and configured. You can verify this by running the Get-ExchangeCertificate commandlet and find the certificate with your external DNS domain name. The certificate will have IPWS listed under Services, which stands for IMAP, POP, Web and SMTP respectively.   At this point, make sure that your Client receive connector is configured with the same FQDN that is listed in the subject of your Exchange certificate. This will be displayed in the banner: Once all of this is done, you are ready to setup Outlook, Outlook Express, Windows Mail, etc. Important points here are: The client machine must trust both the Exchange certificate and the Root CA in which it was created from. A good test is to open IE on the client and browse OWA to see if you get the certificate warning(s). You must configure the mail client to connect on port 587 and to send the proper credentials for authentication. The server requires a TLS connection, you must specify this in the mail client   Some of this information in this blog was obtained from the SBS Blog team at  http://blogs.technet.com/b/sbs/archive/2008/09/18/how-to-configure-trusted-smtp-relay-in-exchange-on-sbs-2008.aspx Lyle Epstein Kortek Solutions Lyle Epstein’s Systems Engineer Blog