Plesk Deliverability issue for specific email

Job ID: 32624710

Budget: €12 – €18 EUR

Pls i have problem with a specific domain in a plesk server that cannot send to a specifi email.
I get the error
Diagnostic-Code: smtp; 551 This mail server requires authentication before
sending mail from a locally hosted domain. Please reconfigure your mail
client to authenticate before sending mail.
Related categories: System Admin Linux DNS