I keep the settings for the SMTP servers I use in my projects. It is handy to have them on hand for quick access.

Office365 SMTP, POP3 and IMAP settings

To send emails using Office365 server enter these details:

SMTP Host: smtp.office365.com
SMTP Port: 587
SSL Protocol: OFF
TLS Protocol: ON
SMTP Username: (your Office365 username)
SMTP Password: (your Office365 password)

POP3 Host: outlook.office365.com
POP3 Port: 995
TLS Protocol: ON
POP3 Username: (your Office365 username)
POP3 Password: (your Office365 password)

IMAP Host: outlook.office365.com
IMAP Port: 993
Encryption: SSL
IMAP Username: (your Office365 username)
IMAP Password: (your Office365 password)

Amazon SES

Just go to the docs.

Google GSuite | Workspace (why did they rename this? lol)

Requires SSL: Yes
Port: 993

Requires SSL: Yes
Requires TLS: Yes (if available)
Requires Authentication: Yes (I got this off the website, I use it without auth all the time. You can set it up in Gmail, or in Google Admin Console)
Port for SSL: 465
Port for TLS/STARTTLS: 587