From e0d8bcfebc410641db9e2a9f661759e0ca2a8ec2 Mon Sep 17 00:00:00 2001 From: puneethmeister <3039750+puneethmeister@users.noreply.github.com> Date: Tue, 22 Oct 2024 11:51:40 +0530 Subject: [PATCH 1/2] Update outbound-spam-high-risk-delivery-pool-about.md --- .../outbound-spam-high-risk-delivery-pool-about.md | 1 - 1 file changed, 1 deletion(-) diff --git a/defender-office-365/outbound-spam-high-risk-delivery-pool-about.md b/defender-office-365/outbound-spam-high-risk-delivery-pool-about.md index be36ab44e0..e94b21c987 100644 --- a/defender-office-365/outbound-spam-high-risk-delivery-pool-about.md +++ b/defender-office-365/outbound-spam-high-risk-delivery-pool-about.md @@ -72,7 +72,6 @@ The forwarded or relayed message should meet one of the following criteria to av - SPF passes when the message comes to Microsoft 365. - DKIM on the sender domain passes when the message comes to Microsoft 365. -You can tell that a message was sent via the relay pool by looking at the outbound server IP (the relay pool is in the 40.95.0.0/16 range). In cases where we can authenticate the sender, we use Sender Rewriting Scheme (SRS) to help the recipient email system know that the forwarded message is from a trusted source. You can read more about how that works and what you can do to help make sure the sending domain passes authentication in [Sender Rewriting Scheme (SRS) in Office 365](/office365/troubleshoot/antispam/sender-rewriting-scheme). From d6ffd58c96696038fd2564169c00ad14c0984267 Mon Sep 17 00:00:00 2001 From: Chris Davis Date: Tue, 22 Oct 2024 07:56:17 -0700 Subject: [PATCH 2/2] Update outbound-spam-high-risk-delivery-pool-about.md --- .../outbound-spam-high-risk-delivery-pool-about.md | 1 - 1 file changed, 1 deletion(-) diff --git a/defender-office-365/outbound-spam-high-risk-delivery-pool-about.md b/defender-office-365/outbound-spam-high-risk-delivery-pool-about.md index e94b21c987..804620aa4d 100644 --- a/defender-office-365/outbound-spam-high-risk-delivery-pool-about.md +++ b/defender-office-365/outbound-spam-high-risk-delivery-pool-about.md @@ -72,7 +72,6 @@ The forwarded or relayed message should meet one of the following criteria to av - SPF passes when the message comes to Microsoft 365. - DKIM on the sender domain passes when the message comes to Microsoft 365. - In cases where we can authenticate the sender, we use Sender Rewriting Scheme (SRS) to help the recipient email system know that the forwarded message is from a trusted source. You can read more about how that works and what you can do to help make sure the sending domain passes authentication in [Sender Rewriting Scheme (SRS) in Office 365](/office365/troubleshoot/antispam/sender-rewriting-scheme). For DKIM to work, make sure you enable DKIM for sending domain. For example, fabrikam.com is part of contoso.com and is defined in the accepted domains of the organization. If the message sender is sender@fabrikam.com, DKIM needs to be enabled for fabrikam.com. you can read on how to enable at [Use DKIM to validate outbound email sent from your custom domain](email-authentication-dkim-configure.md).