01) On the initial screen of your device, go to "Settings".
02) In the list of options, go to "Mail, Contacts, Calendars".
03) Select "Add Account":
04) Choose the option "Other":
05) Where is written email, go to "Add. Mail Account ".
06) Enter the data:
Name: Display Name
E-mail: email@domain.com
Password: Email account password
Description: Account description for device view
07) To continue, click "Next" in the upper right corner.
08) In "Incoming Mail Server" enter the data:
Hostname: mail.domain.com
Username: email@dominio.com.br
Password: Email account password
09) Below, under "Outgoing Mail Server", enter the data:
Hostname: mail.domain.com
Username: email@dominio.com.br
Password: Email account password
When the message below appears, click "Continue"
Leave the "E-mail" option checked, and click "Save".
Note: Disable the SSL option if you do not have a private SSL certificate for your domain. The port should be for Outbox: 587 (without SSL) and 465 (with SSL). The port should be for Inbox: 143 (without SSL) and 993 (with SSL).