1 - Desativar no gmail o pop3 e ativar o imap 
2 - Ativar primeiro a Verificação em duas etapas na contado google segurança
3 - Ir para o endereço 
https://security.google.com/settings/security/apppasswords
Fazer o login
4 - em device Other (Custom name) colocar o nome personalizado
MailWasher ou
OUTLOOK

Gmail
1. Go to your Google Account.
NOTE: If you see the line App passwords under 2-Step Verification then this is already setup, therefore skip to part 9.
2. Click Security and then Click 2-Step Verification
3. Click Get Started
4. Enter your Gmail password if it's not already saved and click Next
5. Select your device and press Continue
6. Enter your phone number and click Send
7. You'll receive a text message from Google with a number which looks like G-123456. Only enter the number part (eg. 123456) in to the part where it says Enter the code. Click Next.
8. Check everything looks correct and click Turn on.
9. Click App passwords.
10. Enter your Gmail password if it's not already saved and click Next
11. In the drop down menu choose Mail
12. Select device Other (Custom name)
13. Type MailWasher as the name and click Generate
14. Your password for MailWasher will be generated
15. Enter your new app password in to MailWasher and click Save