Please note that these instructions are for all mail within in the tenant. Outbound instructions set-up for all mail-in tenant
Outbound mail is routed to Proofpoint by configuring an outbound mail gateway. Proofpoint is deployed between the customer’s Office 365 environment and the Internet. Ensure Reject email messages if they aren’t over TLS is checked. You will turn this inbound connector on once you are ready to cutover mailflow. (Optional) Enter a value for Description (e.g. While accessing the Exchange Admin Center, click mail flow then connectors. If you are unsure, please email support for clarification.Īn inbound connector is used to manage mail traffic between Office 365 and Proofpoint. Therefore look for that stack in the list of IP values. For example, if your URL is than you are on stack “EU1”. You can determine this by looking at the URL in your browser. Select the IP addresses that correspond to the stack you are hosted on. This rule will allow external email to come in still but will follow O365 scoring. Do the following > Modify the message proprieties > set the spam confidence level > bypass spam filteringĭue to major complaints, Proofpoint has opted to change to the format of ensuring Proofpoint mail is not scored via the O365 system. Ensure Set the spam confidence level (SCL) to is selected in the Do the following… menu Type in the address followed by the + icon. For Apply this rule if… select The sender…IP address is in any of these ranges or exactly matches. In the new rule window, complete the required fields: Click + icon to access the pull-down menu. This will launch the Exchange Admin Center Sign-In to the Office 365 Admin portal. Unfortunately, you have to enter in the IP ranges twice in this set-up documentation: Connection Details The maximum size of a range is a /24 it will not recognize larger ranges. It does not allow you to enter a large IP range. Please note that Microsoft has a limitation of their allow list. The delivery and failover destinations refer to the “points to” values captured in the previous section. Repeat if you are adding more than 1 domain. Click Verify Now if you wish to verify your domain at this stage or Verify Later.Įach Domain must be verified before it can be enabled. Choose the method you wish to use for domain verification. Enter the delivery and failover destinations’ values. Ensure “Relay” is selected for domain purposes. Enter the domain name you wish to configure. Navigate to the ‘Administration‘ section and click Account Management > Domains Sign-in to the Proofpoint user interface. These values will be necessary when you add your domains to Proofpoint Under Exchange Online, locate the MX row in the table from the Points to address or value column (i.e..) Click on the domain you wish to manage. Sign-In to the Office 365 Admin center. Locate your MX record for the domain in Office 365… After the email is processed by Proofpoint it is routed to Office 365. Inbound mail is routed to Proofpoint by changing the customer’s MX records. Create filter policies and/or approve/block sender list itemsįor ease of DNS changes, turning down your TTLs on the DNS, specifically, MX and TXT records will help in the above domain verification, and later MX cut-over. Add in users (preferable with Azure: Azure Active Directory Sync Guide – New API Version) Customize Digest settings (before adding in users) Customize Spam settings (before adding in users) Prior to the below set-up for Office 365, please ensure to do this with the Proofpoint side. If you are splitting your mail routing, you may need to consult Microsoft on creating the necessary custom rules based on our documentation. The instructions on this KB presume that you are setting up all your domains in your tenant with Proofpoint. INFORMATION NEEDED FOR CONFIGURING OFFICE 365 MX record(s) for domain(s) you are configuring INFORMATION NEEDED FOR CONFIGURING Proofpoint Office 365 is a cloud-based solution from Microsoft which offers email, messaging, security, archiving and other capabilities delivered from Microsoft’s worldwide network of cloud data centers.īefore continuing with the provisioning and configuration of the Proofpoint service, it is recommended that you have the information listed below.
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This article explains how to configure Microsoft Office 365 to use Proofpoint as your email gateway.
Situation – You want to configure Microsoft Office 365 to use with Proofpoint as your email gateway.
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