Email Setup – Thunderbird example
At this point (above) choose “POP3” and then IMPORTANT: click the “Manual config” button.
Whatever you put into the “Your Name” field will show up in the “From” line of the recipient’s email address.
Make sure the FULL email address is in the “Username” field.
for both incoming & outgoing server hostnames & make sure the Ports are 995 (in) & 465 (out) and SSL/TLS, Authentication Normal Password – as in the above screenshot.