Guide - How to Configure Office 365 SMTP/IMAP/POP3 Settings? - MiniTool

When adding an Outlook account to another mailing app, you may need Outlook's POP, IMAP, or SMTP settings. This article will guide you to configure Office 365 SMTP settings and introduce IMAP and POP3 settings.

You can use Outlook to send and receive emails from Yahoo, Gmail, Hotmail, and other mailboxes. This requires your mail provider's incoming server settings (POP or IMAP) and outgoing server settings (SMTP). Before configuring the Office 365 SMTP settings, we will introduce the relevant information about SMTP, IMAP, and POP3.

SMTP, IMAP and POP3

SMTP (Simple Mail Transfer Protocol) is used to send mail from one server, such as an Office 365 SMTP server, to another server. Most mail providers use outgoing mail servers with SMTP to send mail over the Internet.

SMTP works in conjunction with the Mail Transfer Agent (SMTP Relay) to send your mail to the correct mailbox and computer. SMTP relay ensures that the email you send reaches the recipient's mailbox.

POP3 (Post Office Protocol) is an email protocol widely used to receive mail. In POP3, your mail is downloaded from the server and stored locally on your device. This way, you can access your email even if you are offline.

IMAP (Internet Mail Access Protocol) is currently the most commonly used protocol for receiving emails. The IMAP protocol saves all messages to its servers, rather than downloading them to local storage.

Whenever you want to view the email, your email client will contact the server and load the email, regardless of the device's IP address. With IMAP, you can view your email from anywhere, any device, or any IP address.

Office 365 SMTP Settings

Now let's see how to set up SMTP settings for Microsoft Office 365 mail server.

• Send directly: This method involves setting up your MX endpoint as a server. You must look up your MX records from the admin center.
• Submit using SMTP client, i.e. SMTP AUTH or SMTP authentication.
• Send emails through Office 365 SMTP relay using a dedicated relay (SMTP connector) configured with a public IP address.

Unlike direct sending, the SMTP AUTH mail configuration allows you to send mail to people inside and outside your organization. Additionally, with the SMTP authentication method, your IP address does not need to be static like the relay server method.

Step 1: Log in to the Microsoft Outlook Mail app. Then, go to File > Account Settings > Server Settings .

Step 2: Click Outgoing Mail to set your SMTP Outgoing Server settings.

• SMTP server address : smtp.office365.com
• Port number : 587
• Encryption method : STARTTLS
• Username : Your Office 365 email address
• Password : Your Office 365 application password

Note: Do not use custom IP addresses as mail servers, as Office 365 does not support them.

Office 365 IMAP/POP3 settings

If you need to configure Office 365 IMAP or POP3 settings, you can follow these steps:

Server name : outlook.office365.com

Port number : 993

Encryption : SSL/TLS

Server name : outlook.office365.com

Port number : 995

Encryption : SSL/TLS

Conclusion

All in all, here is all the information about the Office 365 SMTP server settings. If you have any different ideas about Office 365 SMTP settings, you can share them in the comments section.

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