That's no problem, this article should help.
Besides your username (email address) and password, there are 3 more things you will need to establish an SMTP connection:
Most email providers' SMTP settings can be found online:
An incorrect hostname/server is the most common cause of SMTP errors.
If my email address is email@example.com and it is a company Gmail email address, my SMTP hostname is not smtp.nutshell.com. The correct hostname for a Gmail email address is smtp.gmail.com.
If your company uses a Microsoft Exchange server or your email address is provided by any other sort of customized server, you will most likely need to reach out to your email administrator/provider to get the correct SMTP settings.