Email Client Setup: Other Mail Clients
POP3, IMAP4, and SMTP Clients
For the best experience, Washington University IT recommends using the Microsoft Outlook client for Windows, MacOS, iOS, Android, and Web.
WashU IT will provide support for POP3, IMAP4, and SMTP clients connecting to the Microsoft 365 (M365) service on a best effort basis. Support does include troubleshooting and resolving any client authentication and connection issues to the M365 service.
NOTE: Email clients using the POP3, IMAP4, and direct SMTP protocols are generally not permitted to connect to Washington University’s Microsoft 365 system.
Security Exceptions
For specific needs, security connection requests for POP3, IMAP4, and SMTP can be made through the Office of Information Security.
Email Client Setup | Outlook for Windows | Outlook for Mac OS | Apple Mail | Outlook App for iOS | Outlook App for Android | iOS | Android | Other Mail Clients