Hi Christopher,
As advised by our senior staff members - please use the following settings:
Your Name: (Your Name)
Email Address: email@mystore.com (Your Salehoo Store Mailbox)
Password: (The Password you used when you created the mailbox)
A) Normal Settings
Incoming: POP3
Server Hostname: mail.ddmemail.com
Port: 110
SSL: None
Authentication: Normal password
Outgoing: SMTP
Server Hostname: mail.ddmemail.com
Port: 587
SSL: None
Authentication: Normal password
B) Alternatively, if they would like to use secure connection when sending messages, they should use the settings below:
Incoming: POP3
Server Hostname: mail.ddmemail.com
Port: 110
SSL: None
Authentication: Normal password
Outgoing: SMTP
Server Hostname: mail.ddmemail.com
Port: 465
SSL: SSL/TLS
Authentication: Encrypted password
Please note that this setting does not only apply to Thunderbird, it should also work with Outlook, Outlook Express, Mac email client and others.
Hope this helps :)