All alumni students from NUS get a free email account with 25GB storage for life at NUS AlumMail. The email address is of the form email@example.com. This email system seems to be built upon Microsoft Office 365. If you login to AlumMail from Chrome or Firefox, it presents a simple Microsoft Outlook WebApp interface. The POP, IMAP and SMTP settings for connecting to your AlumMail account cannot be found anywhere in this WebApp interface nor on the AlumMail website.
A far richer UI and settings interface is obtained if you login to AlumMail from Internet Explorer. It is here that I discovered the POP, IMAP and SMTP settings for NUS AlumMail:
POP server: pod51003.outlook.com Port: 995 Encryption method: SSL
IMAP server: pod51003.outlook.com Port: 993 Encryption method: SSLSMTP server: pod51003.outlook.com Port: 587 Encryption method: TLS