Kindly follow the below settings to configure the email account in email client.

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Username : Full email address
Password : Correct email password

Select IMAP

Incoming mail server : secure.emailsrvr.com    
For IMAP use 143 - SSL Disabled      ( If SSL enabled Use 993)

Outgoing Mail server : secure.emailsrvr.com    
Outgoing SMTP port - 25 or 587 or 26 ( If SSL enabled use 465)
SSL Disabled or None

In More or Advanced Settings - Select SMTP Authentication Enabled
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