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

SSL

IMAP4

outlook.office365.com

993

SSL

SMTP

smtp.office365.com

587

TLS

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 launcherOffice 365 app launcher icon > Outlook.

    Office 365 navigation options
  3. On the nav bar, click SettingsSettings 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 launcherOffice 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.