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Mail Flow Guided Walkthrough
This article contains links to technical resources and support information for troubleshooting mail flow in Office 365. To troubleshoot common mail flow issues in Office 365, see the
http://support.microsoft.com/common/survey.aspx?scid=sw;en;3568&showpage=1Mail Flow Guided Walkthrough. The walkthrough helps admins to diagnose and resolve issues that are related to mail flow in various scenarios.
Before you review the resources in this article, be aware that the
https://testconnectivity.microsoft.com/Microsoft Remote Connectivity Analyzer offers several tests on the Office 365 tab that are helpful when you are troubleshooting mail flow in Office 365. These tests include the following:
Office 365 Exchange Domain Name Server (DNS) Connectivity test
Inbound SMTP Email test
Outbound SMTP Email test
The following resources discuss mail flow.
Cannot send email messages
Knowledge Base articles
https://support.microsoft.com/en-us/kb/22699712269971 Users receive Send/Receive error messages after they configure multiple accounts in Office 365 by using Outlook
https://support.microsoft.com/en-us/kb/26171142617114 You can't send email messages in Office 365 Small Business from a domain that's set up for full redelegation
Office 365 Community
http://community.office365.com/en-us/wikis/exchange/outbound-mail-flow.aspxWhy is my message taking so long to arrive at its destination?
http://community.office365.com/en-us/blogs/office_365_technical_blog/archive/2012/08/09/troubleshooting-issues-with-sending-and-receiving-email-in-office-365-lync-and-learn.aspxWebcast: Troubleshooting issues with sending and receiving email in Office 365
http://community.office365.com/en-us/blogs/office_365_technical_blog/archive/2012/10/18/office-365-expert-discussions-series-advanced-techniques-for-troubleshooting-issues-with-sending-and-receiving-email-in-office-365.aspxWebcast: Advanced techniques for troubleshooting issues with sending and receiving email in Office 365
http://community.office365.com/en-us/blogs/office_365_technical_blog/archive/2012/09/06/office-365-expert-discussion-series-3-troubleshooting-dns-issues-for-office-365.aspxWebcast: Troubleshooting DNS
Cannot receive email messages
https://support.microsoft.com/en-us/kb/24150532415053 Email messages are not received for a new domain that you add in the Office 365 portal
https://support.microsoft.com/en-us/kb/25261642526164 You're not receiving email messages in Office 365 Small Business for a domain that's set up for full redelegation
http://community.office365.com/en-us/wikis/exchange/inbound-mail-flow.aspxWhere is the message that someone claims to have sent me?
Nondelivery reports (NDRs)
https://support.microsoft.com/en-us/kb/26854372685437 "Delivery has failed" and "550 5.1.1 RESOLVER.ADR.RecipNotFound" NDR after a mailbox is moved to Office 365
http://community.office365.com/en-us/wikis/exchange/bounce-messages.aspxHow do I interpret a Delivery Status Notification (DSN) message?
Mail flow to or from on-premises environments
https://support.microsoft.com/en-us/kb/27306092730609 On-premises users aren't getting email messages from Office 365 users in an Exchange hybrid deployment
Help and TechNet content
http://technet.microsoft.com/en-us/library/gg430176Shared address space with on-premises relay scenario (MX points to on-premises)
http://technet.microsoft.com/en-us/library/gg749878Shared address space with on-premises relay scenario (MX points to FOPE)
SMTP relay with Exchange Online
http://aka.ms/relay-office365How to Allow a Multi-function Device or Application to Send E-mail through Office 365 Using SMTP
http://technet.microsoft.com/en-us/library/gg430172.aspxFully hosted scenario
http://technet.microsoft.com/en-us/library/gg430178Outbound smart host scenario
http://technet.microsoft.com/en-us/library/gg430159Inbound safe listing scenario
http://technet.microsoft.com/en-us/library/gg430177Regulated partner with forced TLS scenario
http://community.office365.com/en-us/w/exchange/troubleshooting-mail-flow-in-office-365.aspxMail flow in Office 365
Still need help? Go to the
http://community.office365.com/Office 365 Community website.
Article ID: 2757871 - Last Review: 10/08/2014 15:44:00 - Revision: 35.0
Microsoft Exchange Online
o365 o365022013 KB2757871
Office 365 Community
https://support.microsoft.com/en-us/kb/27306092730609 On-premises users aren't getting