Step Wise Manual Singnet mail settings for thunderbird
If you don't have a Singnet mail address. you can create an email id from here then you can Singnet email login.
Open Thunderbird Software App. Click on Email
When you click on the email, pop-up Set UP an Existing Account Screen.
Enter Your name, Singnet Email address and Password then press Continue.
Click on the Manual config menu at bottom.
Enter Below Singnet incoming server settings.
In incoming click on the dropdown menu and select POP.
Add server host :pop.singnet.com.sg
Port: 110
select SSL/TLS
Enter Below Singnet outgoing server settings.
In outgoing select SMTP.
Add server host :mail.singnet.com.sg
Port: 25
select SSL/TLS
Tap on Done. Now you are ready to use your Singnet email account on your Thunderbird.