Thunderbird - add mailbox

• Menu Bar: Edit/Settings or left mouse menu on current mailbox Settings
• Account Actions (left bottom) Add Mail Account

  Your name: Full Name
  Email address: name.surname@cerge-ei.cz
  password: valid password

• Continue; wait for autodetection; Manual config; Re-test;Done See also this or this

==== How to add mailbox for archive on mailarch ====

Your name: Full Name
Email address: login@mailarch.cerge-ei.cz
password: valid password for mailarch