SETUP SENDER/REPLY-TO/BOUNCED EMAIL ADDRESSES
* Go to 'Tools' -> 'Configuration & settings'
* Set the Sender/Reply-To/Bounced Email addresses under 'General
settings'
CREATE MAILLING LIST
* Go to 'Mailing lists' -> 'Create new'
* Enter your 'List name' and 'Description'
* Click 'Save'...