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external domain

About this tag
The external domain tag on WindowsForum.com covers discussions about managing DNS conflicts when an internal Active Directory domain shares the same name as a public website or email domain. Common scenarios include Windows Server 2016 environments where top-level internal domains like example.com match the external domain used for hosting and email. Users report issues such as local clients failing to receive POP email while sending works, and VPN connections breaking email access for accounts on different domains. Troubleshooting often involves adding subdomains to separate internal and external DNS namespaces, configuring A records for public access, and resolving resolution conflicts. The tag is relevant for IT administrators dealing with split-brain DNS, hybrid identity, or email routing problems in Windows domain networks.
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    Server 2016 Help with DNS issue (.com top level domain)

    Im running a windows 2016 domain. top level internal domain is example.com and so is external domain (where website is hosted). this is not a good practice but it is what it is. I could add a sub domain but not sure on how to reconfigure and move all clients. I added a www A record with the...
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    • Thread
    • client connection dns domain setup email accounts email configuration external domain guidance internal domain local clients mx records network issues pop mail public website reconfiguration record subdomain top level domain troubleshooting vpn windows server 2016
    • Replies: 4
    • Forum: Windows Server Forums
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