• The BIND DNS server has already been deprecated and removed from Plesk for Windows.
    If a Plesk for Windows server is still using BIND, the upgrade to Plesk Obsidian 18.0.70 will be unavailable until the administrator switches the DNS server to Microsoft DNS. We strongly recommend transitioning to Microsoft DNS within the next 6 weeks, before the Plesk 18.0.70 release.
  • The Horde component is removed from Plesk Installer. We recommend switching to another webmail software supported in Plesk.

Question SMTP Error (550)

Mustafa Asker

Mustafa Asker

New Pleskian
Everyone can send mail and I can receive any mail. the subscriptions I host on the same server can not send mail to each other. I'm getting the error below.

Code: 
SMTP Problem (550): "mustafa@exrom.com.tr" recipient could not be added (5.1.1 <mustafa@exrom.com.tr>: Recipient address rejected: User unknown in virtual mailbox table)
 
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