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Exchange Server can be difficult to setup – we advise also making use of the following guide offered by external Exchange consultants:
This guide provides step by step instructions on how to setup your SMTP2GO server as Smart host on your functional Exchange Server 2007 or Exchange Server 2010.
Open the Exchange Management Console.
Expand the Organization Configuration. To do so, click the plus sign (+) to the left of the Organization Configuration. Click on the Hub Transport and select the Send Connectors tab.
Right-click on your existing Send Connector and select the Properties.
Select the Network tab.
Select the Route mail through the following smart hosts option and click the Add button.
Select the Fully Qualified domain name (FQDN) option and enter mail.smtp2go.com into this field. ClickOK.
Click the Change button and select the Basic Authentication option.
Click to select the Basic Authentication over TLS check box.
Enter your SMTP2GO Username into User name, and your SMTP2GO Password into Password. Click OK.
Exchange Server 2007 (and newer) sends all Out of Office (OOF) Notifications from a blank sender email address. If you are using Exchange Server 2007 (or newer) you should go to the ‘Settings > Sending Options’ page in your SMTP2GO control panel, and turn ‘Blank Senders’ ON. That will allow OOF Notifications to be sent.
You must also ensure that you enable the ‘Filter recipients who are not in the Directory’ option under ‘Recipient Filtering’ under ‘Message Delivery Properties’ in the Exchange Server’s Global Settings. This will ensure that your Exchange Server will not be open to sending backscatter spam. See here and here for more information about this issue.
Note: If you see an error ‘550 unable to verify sender address’ when trying to send an email after setting up, this means your ‘From’ email address doesn’t have a valid MX record setup yet. All emails must be sent from an email address that has an MX record at its domain name.
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