You can acquire the POP3/IMAP and SMTP settings from Plesk to help with configuration on mail clients like Outlook, Thunderbird and even your website contact pages.

To get this settings:

1. Login to Plesk Control Panel

2. Go to Mail then click the Information Icon next to your email as shown below

3. Select the Platform you want to use and the connection details will appear

Alternatively, you could use the default connection details as follows

Incoming Settings

Incoming server/host: mail.domain.com

Port: 110 for POP3, 143 for IMAP

Username: Full email eg info@domain.com

Password: Password of email above

Encryption: TLS

Outgoing/SMTP Settings

SMTP server/host: mail.domain.com

Port: 587

Username: Full email eg info@domain.com

Password: Password of email above

Encryption: TLS