What Are the Outlook.com SMTP Server Settings

Step-by-Step Instructions

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Microsoft Corporation


Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail (email) transmission. It is a TCP / IP protocol - the basic communication language of the internet. SMTP was first defined by RFC 821 in 1982, it was last updated in 2008 with the Extended SMTP additions by RFC 5321—which is the protocol in widespread use today. SMTP is usually implemented to operate over internet port 25.

Typically, SMTP will be used for sending email - if this was snail mail, SMTP would be the mailman, getting your mail from one place to the next. One of two other protocols, POP3 or IMAP, will be used for receiving emails.

When you are setting up Outlook, you'll need to enter the correct SMTP information

What are the Outlook.com SMTP Server Settings

Here's the information you need to properly set-up Outlook to send your email, step-by-step. The information is the same whether on a desktop, cell phone, smart phone or tablet.

5 Easy Steps

  1. Outlook.com SMTP server address: smtp-mail.outlook.com
  2. Outlook.com SMTP user name: Your full Outlook.com email address (not an alias)
  3. Outlook.com SMTP password: Your Outlook.com password
  4. Outlook.com SMTP port: 587 (you can use port 25 as an alternative)
  5. Outlook.com SMTP TLS/SSL encryption required: yes

Completing Outlook Set-Up With IMAP or POP information

To download and store incoming messages from an Outlook.com account to an email program you must choose either the POP​3 or ​​​IMAP protocol.

POP3 (Post Office Protocol) and operates just like the post office - it delivers your mail and does not keep a copy on the server.

IMAP (Internet Message Access Protocol) allows you to keep a copy of your email on remote servers ​and allows the user to synchronize their email among multiple devices, e.g., laptop and smartphone, which can be very important these days.

 The good news, it's easy to change between POP3 and IMAP.