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Titre
Email Sent to Source (Exchange 2013) DL is not reaching to members already migrated to target (O365) -
Description
We are randomly reported by users who are migrated to O365 (target) that when an email sent to a DL is not received in there mailbox. DL and its members are identical on both Source (Exchange Server 2013) and Target (O365), also we have ensured that the target address is present on a source user attribute. -
Cause
Mail Tracking Log shows that all Target Addresses have been translated correctly by Quest Tool, but your Microsoft Exchange Server is dropping some mails, kindly help to address this Microsoft Exchange issue with Microsoft.
Get-MessageTrackingLog -Recipients xxxxx@xxxxx.com -Sender @xxxx.com | FL SourceContextSourceContext : ExplicitlyDiscardedSource : SMTPEventId : HADISCARD -
Résolution
Emails not going through, ExplicitlyDiscarded, HADISCARDhttps://social.technet.microsoft.com/Forums/en-US/236a7eeb-9d6b-4747-9ffd-f00d54917337/emails-not-going-through-explicitlydiscarded-hadiscard?forum=exchangesvrsecuremessagingOffice365Get-InboundConnectorGet-outboundConnectorGet-ReceiveConnectorIdentity Bindings Enabled-------- -------- -------NL-EXMBX01\Default NL-EXMBX01 {0.0.0.0:2525, [::]:2525} TrueNL-EXMBX01\Client Proxy NL-EXMBX01 {[::]:465, 0.0.0.0:465} TrueNL-EXMBX01\Default Frontend NL-EXMBX01 {[::]:25, 0.0.0.0:25} TrueNL-EXMBX01\Outbound Proxy Frontend NL-EXMBX01 {[::]:717, 0.0.0.0:717} TrueNL-EXMBX01\Client Frontend NL-EXMBX01 {[::]:587, 0.0.0.0:587} TrueGet-ReceiveConnector -id "NL-EXMBX01\Default Frontend NL-EXMBX01"|fl max*MaxInboundConnection : 5000MaxInboundConnectionPerSource : 20MaxInboundConnectionPercentagePerSource : 2MaxHeaderSize : 256 KB (262,144 bytes)MaxHopCount : 60MaxLocalHopCount : 12MaxLogonFailures : 3MaxMessageSize : 36 MB (37,748,736 bytes)MaxProtocolErrors : 5MaxRecipientsPerMessage : 200MaxAcknowledgementDelay : 00:00:30Customized receive connectors limited to 20 messages from 1 source at a time, increased to 200Set-ReceiveConnector -identity nameofconnector -MaxInboundConnectionPerSource 200