Note: This article applies to Microsoft 365 operated by 21Vianet in China. All other customers should see POP and IMAP settings for Outlook Microsoft 365 for business .
Exchange Online supports mailbox access through the IMAP4 or POP3 protocol. The SMTP protocol is used to send outbound mail for clients that connect to Exchange Online through IMAP or POP. To configure for POP and IMAP access, use these settings:
|
Server name |
Port |
Encryption method |
|
|---|---|---|---|
|
POP3 |
partner.outlook.cn |
995 |
SSL |
|
IMAP4 |
partner.outlook.cn |
993 |
SSL |
|
SMTP |
smtp.partner.outlook.cn |
587 |
TLS |
