Settings for POP and IMAP access for Office 365 for business or Microsoft Exchange accounts

If you’re using Office 365 for business or other Microsoft Exchange-based email, you can find your Post Office Protocol 3 (POP3) and Internet Message Access Protocol 4 (IMAP4) server settings by using Outlook Web App. Connecting to your Office 365 for business or other Microsoft Exchange-based email account using POP3 and IMAP4 only lets you send and receive email. You can’t access your contacts, tasks, or calendar when you connect to your account using POP3 or IMAP4.

TIP    For the best experience, we recommend that you connect to your Office 365 for business or other Exchange email account using Outlook Web App, or through an email program that supports Exchange ActiveSync access such as Outlook 2013, Outlook 2010, and Outlook for Mac 2011, Apple Mail 10.6 Snow Leopard, Apple Mail 10.7 Lion, or Entourage 2008 Web Services Edition.

To review instructions for setting up your Office 365 for business or other Microsoft Exchange email on some of the most frequently used email programs, see Instructions for setting up email for your Office 365 for business or Microsoft Exchange account.

In this article

Find POP or IMAP server settings

POP and IMAP options

Instructions for setting up email for your Office 365 for business or Microsoft Exchange account

What else do I need to know?

What if I want to know more?

Find POP or IMAP server settings

If you’re connecting to your Office 365 for business email, you don’t need to look up your settings. For Office 365 for business, use the following settings.

 

Server name

Port

Encryption method

POP3

outlook.office365.com

995 implicit

TLS* v1-1.2

IMAP4

outlook.office365.com

993 implicit

TLS* v1-1.2

SMTP

smtp.office365.com

587 explicit

TLS v1-1.2

* Some clients refer to implicit TLS as SSL.

If you’re using Exchange-based email, but aren't using Office 365 for business, do the following to look up your settings.

  1. Sign in to Outlook Web App. For help, see Sign in to Outlook Web App.

  2. On the nav bar, choose Outlook (or Mail).

    Or

    Choose App launcher Office 365 app launcher icon > Outlook.

    Office 365 navigation options
  3. On the nav bar, click Settings Settings icon > Options.

  4. Under Options, click Account > My account.

  5. On the My account page, select Settings for POP or IMAP access

    Or

    Under Mail > Accounts, select POP and IMAP.

  6. The POP3, IMAP4, and Simple Mail Transfer Protocol (SMTP) server name as well as other settings you may need to enter are listed on the Settings for POP or IMAP Access page under POP setting or IMAP setting or SMTP setting.

POP and IMAP options

Use these options to change the format of meeting invitations and read receipts. The settings you change here impact only what you see in email programs you added to your email account using POP and IMAP settings.

If you don't see this feature, it's not available for the service or account you're using.

NOTE   You only need to change these settings if you added your mailbox to an email program using POP or IMAP. If you set up an Exchange account connection, these settings do not apply

  1. Sign in to Outlook Web App. For help, see Sign in to Outlook Web App.

  2. On the nav bar, choose Outlook (or Mail).

    Or

    Choose App launcher Office 365 app launcher icon > Outlook.

    Office 365 navigation options
  3. You set the options individually for POP or IMAP. Check the settings in the email program you're using if you're not sure if you added your account using POP or IMAP. Or, if you're not sure, change settings under both POP options and IMAP options.

    Send meeting invitations in iCalendar format By default, POP or IMAP users receive meeting requests as plain text messages with Outlook Web App-based links to meeting requests. If you select this option, meeting requests are sent in iCalendar (.ics) format. Recipients can take action on the meeting request directly from their email client.

    NOTE   When you use POP or IMAP, meeting invitations are sent in a read-only copy and don't support rich collaboration. The server is not notified about the actions taken (for example, Accept or Decline actions) on the meeting invite. For rich collaboration, use Exchange to connect to your account.

    Don't send receipts for message that have been read By default, if the sender of an email requested an acknowledgment receipt, the sender receives an email notification when the recipient opens the email. Select this option if you don't want to send recipients read receipts.

     

  4. Choose Save.