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Practical 365

Exchange Server 2016 Migration – Mail Flow Cutover

December 15, 2016 by Paul Cunningham 15 Comments

mail flow cutover

Migrating inbound, outbound, and internal relay mail flow to Exchange Server 2016 during a migration project.

Exchange Server Exchange 2016, Mail Flow, Migration, SMTP, Transport

Remove Internal Exchange Server Names and IP Addresses from Message Headers

November 17, 2016 by Paul Cunningham 38 Comments

message headers

How to remove the names and IP addresses of your internal Exchange servers from the headers of outbound email messages.

Exchange Server Exchange Server, Headers, Mail Flow, Security, Send Connectors, Transport

There's No Need to Create Connectors for Internal Exchange Server Mail Flow

July 14, 2016 by Paul Cunningham 30 Comments

Internal mail flow for an Exchange Server environment can be broken due to a number of common mis-configurations.

Exchange Server Exchange Server, Mail Flow, SMTP, Troubleshooting

Event ID 9041, An exception has been thrown: Microsoft Exchange Assistants TransientMailboxException

January 12, 2016 by Paul Cunningham 11 Comments

event id  network configuration

I recently encountered a mail flow problem between two of my test lab environments that was being caused by the DNS configuration on the receiving server’s network interface.

Exchange Server DNS, Exchange 2016, Mail Flow, Transport

MX Records for Exchange Hybrid Deployments

November 26, 2015 by Paul Cunningham 15 Comments

office  hybrid mx

Exchange Hybrid deployments with Office 365 have several options for how the MX records for the domain can be configured.

Exchange Server EOP, Exchange Online, Exchange Online Protection, Hybrid, Mail Flow, MX, Office 365

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