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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

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

A Sender Policy Framework (SPF) Primer for Exchange Administrators

December 7, 2015 by Paul Cunningham 26 Comments

X SPF

Learn how Sender Policy Framework (SPF) records work to prevent email spoofing, and how you can implement the correct SPF record for your domain.

Exchange Server Antispam, DNS, Sender Policy Framework, SPF, Transport

How to Configure Exchange Server 2016 for SMTP Application Relay

October 21, 2015 by Paul Cunningham 108 Comments

exchange  smtp relay

How to configure Exchange Server 2016 to provide SMTP relay services for devices and applications on your network.

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

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