Outgoing port for microsoft exchange

Any trademarks referenced in this document are the property of their respective owners. Services News Support Clients Partners. Search Enter what you want to search for here. Knowledgebase Articles. Setup examples. What ports does MS Exchange use? Problem What ports does MS Exchange use? TCP Global catalog. When you are troubleshooting issues that may be related to a global catalog, connect to port in LDP.

To configure a global catalog to support SSL, you must install a Computer certificate on the global catalog. Only message headers are automatically downloaded to your computer. Therefore, large messages and any attachments are downloaded only if you select them in the message list. However, when you are offline, you can't read the message bodies or attachments. Also known as an LDAP server. Enter the name of the server that is provided by your system administrator.

Frequently this server address is the same address as your Microsoft Exchange Server address, but this is not always true. Select this check box if the directory service requires the same logon credentials as the Exchange Server. What is a Microsoft Exchange account. Office for Mac Outlook for Mac More Need more help?

Expand your skills. Get new features first. The most important factor is whether you have a subscribed Edge Transport server deployed in your perimeter network.

The network ports that are required for mail flow in an Exchange organization that has only Client Access servers and Mailbox servers are described in the following diagram and table. Although the diagram shows separate Mailbox and Client Access servers, the concepts are the same whether the Client Access server and the Mailbox server are installed on the same computer or on separate computers. Mail is relayed from the Client Access server to a Mailbox server using the implicit and invisible intra-organization Send connector that automatically routes mail between Exchange servers in the same organization.

By default, Exchange doesn't create any Send connectors that allow you to send mail to the Internet. You have to create Send connectors manually. For more information, see Send connectors. For more information, see Create a Send connector for email sent to the Internet. Outbound mail from the Exchange organization never flows through a Client Access server. Mail always flows from a Mailbox server in the subscribed Active Directory site to the Edge Transport server regardless of the version of Exchange on the Edge Transport server.

Inbound mail never flows through a standalone Client Access server. Mail flows from the Edge Transport server to a Mailbox server in the subscribed Active Directory site. If the Mailbox server and the Client Access server are installed on the same computer, mail from an Exchange Edge Transport server first arrives on the computer at the Front End Transport service the Client Access server role before it flows to the Transport service the Mailbox server role.

Exchange or Exchange Edge Transport servers always deliver mail directly to the Transport service even when the Mailbox server and the Client Access server are installed on the same computer.

For more information, see Mail flow. The network ports that are required for mail flow in Exchange organizations that have Edge Transport servers are described in the following diagram and table. Unless otherwise noted, the concepts are the same whether the Client Access server and the Mailbox server are installed on the same computer or on separate computers.

For more information, see the "Send connectors created during the Edge Subscription process" section in the topic, Edge Subscriptions. The service that actually receives mail depends on whether the Mailbox server and Client Access server are installed on the same computer or on separate computers.

Mail is relayed from any Mailbox server in the subscribed Active Directory site to an Edge Transport server using the implicit and invisible intra-organization Send connector that automatically routes mail between Exchange servers in the same organization. Mailbox servers in the subscribed Active Directory site that participate in EdgeSync synchronization. When the Edge Transport server is subscribed to the Active Directory site, all Mailbox servers that exist in the site at the time participate in EdgeSync synchronization.

However, any Mailbox servers that you add later don't automatically participate in EdgeSync synchronization.