Please see office 365 settings but any support queries please contact for Office365 technical support rep
IMAP
IMAP server name outlook.office365.com
IMAP port 993
IMAP encryption method TLS
POP3
POP server name outlook.office365.com
POP port 995
POP encryption method TLS
NOTE: POP3 settings are disabled by default.
SMTP
SMTP server name smtp.office365.com
SMTP port 587
SMTP encryption method STARTTLS
Further information can be found at Microsoft