Gmail:
Open Tournament planner and go in the main menu to Extra -> Options -> Internet:

Enter your full Gmail email address (username@gmail.com) in the From email address: field.
Enter smtp.gmail.com in the outgoing mail (SMTP): field.
Enter 587 in the Port: field.
Tick This server requires an encrypted connection (SSL) and My server requires authentication.
Enter your full email address (including '@gmail.com') in the Account name: field. Enter your email password in the Password: field, and click OK.
After this please login on your gmail account https://mail.google.com/ and go to my account, or click here.
Click on Connected apps & sites

Set the "Access for less secure apps" to ON.
Hotmail:
Open Tournament planner and go in the main menu to Extra -> Options ->Internet:

Enter your full Hotmail email address (username@hotmail.com) in the From email address: field.
Enter smtp.live.com in the outgoing mail (SMTP): field.
Enter 25 in the Port: field (Port 25 is default).
Tick This server requires an encrypted connection (SSL) and My server requires authentication.
Enter your full email address (including '@hotmail.com') in the Account Name: field. Enter your email password in the Password: field, and click OK.
AOLL (as example):
Open Tournament Planner and go in the main menu to Extra -> Options -> Internet:
Enter your full Hotmail email address (username@aol.com) in the From email address: field.
Enter smtp.aol.com in the outgoing mail (SMTP): field.
Enter 587 in the Port: field.
Tick This server requires an encrypted connection (SSL) and My server requires authentication.
Enter your full email address (including '@aol.com') in the Account name: field. Enter your email password in the Password: field, and click OK.