Account Settings

Email Address: your email address (example: matt.smith@domain.com)
Username: your assigned username (example: msmith)
Password: normal password (no encryption)

IMAP (preferred protocol)

Incoming Server Settings
Protocol: IMAP
IMAP Server: mail.tackhosting.com
Security Type: TLS / STARTTLS
Server Port: 143

Outgoing Server Settings
Protocol: SMTP
SMTP Server: mail.tackhosting.com
Security Type: TLS / STARTTLS
Server Port: 465

POP (outdated but still supported)

Incoming Server Settings
Protocol: POP
IMAP Server: mail.tackhosting.com
Security Type: None
Server Port: 110

Outgoing Server Settings
Protocol: SMTP
SMTP Server: mail.tackhosting.com
Security Type: None
Server Port: 587