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To use a client that does not support EXCHANGE natively you can find directions here from Microsoft:
| Info | ||
|---|---|---|
| ||
| Service | POP (incoming) | IMAP (syncing) | SMTP (outgoing) |
|---|---|---|---|
Office 365 | Server: outlook.office365.com Port: 993 Encryption: SSL/TLS | Server: outlook.office365.com Port: 995 Encryption: SSL/TLS | Server: smtp.office365.com Port: 587 Encryption: STARTTLS |