Outlook / Microsoft 365 Email Settings

Last updated: February 21, 2026

How to connect your Outlook / Microsoft 365 email account (outlook.com, hotmail.com, live.com) to InflowMail.

Server Settings

Incoming Mail (IMAP)

Server
outlook.office365.com
Port
993
Security
SSL/TLS

Outgoing Mail (SMTP)

Server
smtp.office365.com
Port
587
Security
SSL/TLS

Supported Domains

These email domains use Outlook / Microsoft 365's servers and will be automatically detected by InflowMail:

@outlook.com@hotmail.com@live.com@msn.com

Notes

Connect with Microsoft 365 sign-in (OAuth). Microsoft retired IMAP/SMTP passwords for Outlook.com and Microsoft 365 — an app password will not work.

How to Connect Outlook / Microsoft 365 to InflowMail

  1. 1 Create an InflowMail account or sign in to your existing account.
  2. 2 Go to Settings > Connected Accounts and click Add Account.
  3. 3 Select Outlook / Microsoft 365 and sign in with your Outlook / Microsoft 365 account. We use OAuth - we never see your password.
  4. 4 Your emails will start syncing immediately. The initial sync may take a few minutes for large mailboxes.

Ready to connect Outlook / Microsoft 365?

Get started with InflowMail and manage all your email accounts in one place.

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