Office 365 smtp relay settings

1. How to configure SMTP relay in Office 365?
2. Does o365 have a SMTP relay?
3. How do I find my SMTP settings in Office 365?
4. How do I enable TLS 1.2 SMTP relay?
5. Does Office 365 SMTP require TLS?
6. What is the difference between SMTP and SMTP relay?
7. How to configure IIS for relay with Office 365?
8. How to configure SMTP relay in IIS?
9. How to use port 587 for SMTP?

How to configure SMTP relay in Office 365?

Click the Delivery tab, then the Outbound Security button. Select Basic Authentication or OAuth Authentication. Enter the credentials of a Office 365 user who you want to use to relay SMTP mail. Select TLS Encryption, then click OK.

Does o365 have a SMTP relay?

Microsoft 365 or Office 365 SMTP relay uses a connector to authenticate the mail sent from your device or application. This authentication method allows Microsoft 365 or Office 365 to relay those messages to your own mailboxes and external recipients.

How do I find my SMTP settings in Office 365?

Find your Exchange mailbox server settings

In Outlook Web App, on the toolbar, select Settings. > Mail > POP and IMAP. The POP3, IMAP4, and SMTP server name and other settings you may need to enter are listed on the POP and IMAP settings page.

How do I enable TLS 1.2 SMTP relay?

Type "Internet Options" and select Internet Options from the list. Click on the Advanced tab and from there scroll down to the very bottom. Confirm that TLS 1.2 is checked. If it is not, please check the box adjacent to Use TLS 1.2 and then Apply.

Does Office 365 SMTP require TLS?

To provide the best-in-class encryption to our customers, Microsoft has deprecated Transport Layer Security (TLS) versions 1.0 and 1.1 in Office 365 and Office 365 GCC. However, you can continue to use an unencrypted SMTP connection without any TLS. We don't recommend email transmission without any encryption.

What is the difference between SMTP and SMTP relay?

Simple Mail Transfer Protocol (SMTP) is a straightforward process that allows users to send, relay, and monitor outgoing emails. An SMTP relay service—also commonly known as an SMTP gateway service—takes this a step further by allowing you to send more transaction and marketing-related emails.

How to configure IIS for relay with Office 365?

Select Start > Administrative Tools > Internet Information Services (IIS) 6.0. Expand the current server, right-click the SMTP Virtual Server, and then select Properties. On the General tab, select Advanced > Add. In the IP Address box, specify the address of the server that's hosting the SMTP server.

How to configure SMTP relay in IIS?

Click the Relay button on the Access tab, and set up the relay options for the server. Ensure that localhost and the IP address 127.0. 0.1 are granted permission to relay mail. Click OK to accept the options, and then click Apply and OK to return to the main page of the IIS Manager.

How to use port 587 for SMTP?

Port 587: The standard secure SMTP port

Modern email servers use port 587 for the secure submission of email for delivery. For example, if you use an email client software like Outlook or Apple Mail, it most likely is configured to use this port to send your messages.