Recommended Channels Mailbox Settings for Office 365 Cloud (without OAuth2)
IMAP setting
- Encryption: SSL/TLS
- IMAP4 server: outlook.office365.com
- IMAP4 Port: 993
- IMAP4 login method: Login plan text
- IMAP4 user name: your user name
- IMAP4 password: your password
POP setting
- Encryption: SSL/TLS
- POP3 server: outlook.office365.com
- POP3 Port: 995
- POP3 login method: Login plan text
- POP3 user name: your user name
- POP3 password: your password
SMTP setting
- SMTP auth method: Auth Plain Text
- Send Mail SMTP Server: smtp.office365.com
- Encryption: StartTLS
- Port: 587
- SMTP user name: your user name
- SMTP password: your password
The following should not be checked:
- Allow Self-Signed Certificates:
- Allow Expired Certificates:
Notes
- If the you are sending out emails using a From address that does not match the configured login for SMTP, you must give that SMTP account "Send As" rights in Office365
- For 9.4 CU 10 through CU14