Configuración de las cuentas de correo en el ordenador local (Microsoft Outlook):

Ej.: administracion @ mi_dominio.com

Mail Server Username: administracion+mi_dominio.com
Incoming Mail Server : mail.mi_dominio.com
Outgoing Mail Server : mail.mi_dominio.com (server requires authentication)
Supported Incoming Mail Protocols: POP3, POP3S (SSL/TLS), IMAP, IMAPS (SSL/TLS)
Supported Outgoing Mail Protocols: SMTP, SMTPS (SSL/TLS)