Click the 'More Settings' box and select the 'Outgoing Server' tab. Check the box next to 'My outgoing server (SMTP) requires authentication.' Click on the advanced tab and Change your outgoing server setting to 2525 or 587 if you are with Verizon you should change your port to 587. Overview: Outlook.com Server Settings. The Outlook.com mail server settings are valid for every email client application that supports the POP3, IMAP or Active Sync protocols, no matter the platform (Windows, Mac, iOS, Android, etc).
Outlook.com SMTP server settings are needed to set up your Outlook.com account in an email client on your smartphone, tablet, or another computer. SMTP settings provide instructions to the mail program on how to send mail from your Outlook.com account.
These instructions apply to SMTP and IMAP email apps that are used to download email from Outlook.com accounts.
What Are SMTP Settings?
SMTP is an abbreviation for Simple Mail Transfer Protocol and it's an internet standard for sending and receiving email messages. However, most mail clients only use SMTP to send messages.
When you set up an email client, the SMTP server settings tell the program where it should send your outbound mail, the authorization information needed for the transaction, and the type of security needed when connecting.
Outlook.com SMTP Server Settings
When you set up Outlook.com in an email client, you may be asked to enter the SMTP server settings. Use these settings:
What About Downloading Mail From Outlook.com?
SMTP server settings are only used to send mail from the Outlook.com address. To download and store incoming messages from an Outlook.com account, you'll need the settings for either a POP3 or IMAP account. Depending on which standard you use on your devices, enter either the Outlook.com POP server settings or the Outlook.com IMAP server settings.
POP3 delivers your mail and does not keep a copy on the server, while IMAP keeps a copy of your email on the email server. Use IMAP if you want to synchronize email across multiple devices, such as your phone, computer, and the Outlook.com website.
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After you enable and configure POP3 or IMAP4 on an Exchange server as described in Enable and configure POP3 on an Exchange server and Enable and configure IMAP4 on an Exchange server, you need to configure the authenticated SMTP settings for POP3 and IMAP4 clients so they can send email messages.
The default Receive connector named 'Client Frontend <Server name>' in the Client Access services on the Mailbox server listens for authenticated SMTP client submissions on port 587. By default, this connector uses the following settings for internal and external client (authenticated) SMTP connections:
For more information, see Default Receive connectors created during setup and Client access protocol architecture.
To configure the authenticated SMTP settings that are used by POP3 and IMAP4 clients, perform the following steps:
What Are Server Settings For Outlook For Mac Client League
For more information about POP3 and IMAP4, see POP3 and IMAP4 in Exchange Server.
What do you need to know before you begin?
Tip
Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection.
Step 1: Configure the FQDN on the 'Client Frontend <Server name>' Receive connector
You can skip this step if you want to keep the default server FQDN value (for example, mailbox01.contoso.com). Or, you can specify an FQDN value that's more compatible with your Internet naming convention or a TLS certificate that you want to use.
If you change the FQDN value, and you want internal POP3 or IMAP4 clients to use this connector to send email, the new FQDN needs to have a corresponding record in your internal DNS.
Regardless of the FQDN value, if you want external POP3 or IMAP4 clients to use this connector to send email, the FQDN needs to have a corresponding record in your public DNS, and the TCP port (587) needs to be allowed through your firewall to the Exchange server.
Use the EAC to configure the FQDN for authenticated SMTP clients
Use the Exchange Management Shell to configure the FQDN for authenticated SMTP clients
To configure the FQDN for authenticated SMTP clients, use the following syntax:
This example configures the FQDN value mail.contoso.com.
How do you know this step worked?
To verify that you've successfully the FQDN on the 'Client Frontend <Server name> ' Receive connector, use either of the following procedures:
Step 2: Use the Exchange Management Shell to specify the certificate that's used to encrypt authenticated SMTP client connections
The certificate needs to match or contain the FQDN value that you specified in the previous step, and the POP3 and SMTP clients need to trust the certificate, which likely means a certificate from a commercial certification authority. For more information, see Certificate requirements for Exchange services.
Also, you need to assign the certificate to the Exchange SMTP service. For more information, see Assign certificates to Exchange Server services.
To specify the certificate that's used for authenticated SMTP client connections, use the following syntax:
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This example uses the certificate that has the thumbprint value 434AC224C8459924B26521298CE8834C514856AB.
How do you know this step worked?
To verify that you've specified the certificate that's used to encrypt authenticated SMTP client connections, perform the following steps:
Step 3: Use the Exchange Management Shell to configure Outlook on the web to display the SMTP settings for authenticated SMTP clients
To configure Outlook on the web to display the SMTP settings server for authenticated SMTP clients, run the following command:
Note: To prevent the SMTP settings from being displayed in Outlook on the web, change the value from
$true to $false .
How do you know this step worked?
To verify that you've configured Outlook on the web to display the SMTP settings for authenticated SMTP clients, perform the following steps:
What Are Server Settings For Outlook For Mac Clients
How do you know this task worked?
To verify that you've configured the authenticated SMTP settings on the Exchange server, perform one or more following procedures:
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