Share Flag. All Answers. Collapse -. Thanks that helped. Back to Networks Forum. Start or search. Start New Discussion. Create a new discussion If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Report abuse. Details required :. Cancel Submit. Winston M. Hi, Which is the antivirus program installed on the computer? Connect to your router by typing There are many DNS servers out there.
It's best to use your ISP's if possible. Click on Start and then Control Panel. Brand Representative for AJ Tek. Best practice dictates that each domain controller should be setup with a different DNS server as it's preferred DNS server, and and the loopback address If you have more than 2 DNS servers in your domain or forest, you should setup a pattern whereby they all have different primary DNS partners, so that each server is used as someone else's primary.
If you have just 2 DC's DC1: Alternate: This is done to ensure that each DC can find its replication partners. Why should you use It's a special internal IP address for the loopback adapter. The IP of the server on the other hand is assigned to the network adapter. Another reason is that using the local loopback does not initiate the network adapter drivers as it is a different interface adapter card Think of it as a different interface.
A different network card. OutlookAnywhere and Split-DNS are vital for future-proofing your Exchange configuration and making it work properly now, regardless if you use Exchange , , , or If you are on Exchange or , and you do not have OutlookAnywhere enabled, enable OutlookAnywhere and follow this guide.
First thing is first, make a backup of your environment's configuration. Run the following commands in Exchange Management Shell to backup your configuration. Start-Transcript EnvironmentBackup. The first 2 Resolve-DnsName commands should both respond from an internal computer to the internal IP of your Exchange server eg. To fix the external records more than likely, autodiscover is the one that doesn't exist and needs to be created , on your domain's external DNS Manager create an A record for autodiscover.
They should have a priority at the beginning where the lowest number is the preference. If you are directing inbound mail traffic to an Anti-Spam 3rd party provider, this will be the hostname s associated with them. In the case of an onsite appliance, create a new A record called inbound. A Sender Policy Framework SPF record identifies which mail servers are permitted to send email on behalf of your domain. The purpose of an SPF record is to prevent spammers from sending messages with forged From addresses at your domain.
If your domain does not have an SPF record, some recipient domains may reject messages from your users because they cannot validate that the messages come from an authorized mail server. Some webhosting companies do this for subdomain management instead of putting an explicit hostname in their DNS records. It actually causes more problems than it fixes, so where possible, you should log into your domain's external DNS Manager and remove the wildcard record.
All InternalUrl and ExternalUrl's should be setup using the hostname mail. This setting includes port settings and the internal URLs for the Exchange services that you have enabled. This setting includes the external URLs for the Exchange services that you have enabled, which are used by clients that access Exchange from the Internet. This setting is not in use.
To harden security, it is best practice to set the CertPrincipalName for each of the Outlook Providers it is also required if you have any lingering XP Clients that will use Outlook.
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