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postfix[error] :Sender address rejected: User unknown in virtual mailbox table (2 Solutions!!) - YouTube
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E-Mails werden nicht zugestellt: User unknown in virtual mailbox table - Wissensdatenbank - Linevast Hosting
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RÉSOLU] Erreur SMTP 550 5.1.1 : Recipient address rejected : User unknown in virtual mailbox table - Support apps - YunoHost Forum
![Recipient address rejected: User unknown in virtual mailbox table" when sending an email to just one address - Super User Recipient address rejected: User unknown in virtual mailbox table" when sending an email to just one address - Super User](https://i.stack.imgur.com/1djUA.png)
Recipient address rejected: User unknown in virtual mailbox table" when sending an email to just one address - Super User
![Recipient address rejected: User unknown in virtual mailbox table · Issue #1324 · knadh/listmonk · GitHub Recipient address rejected: User unknown in virtual mailbox table · Issue #1324 · knadh/listmonk · GitHub](https://user-images.githubusercontent.com/42862428/237659791-efcb9ee1-156b-46ec-8b63-08c5b77dad57.png)
Recipient address rejected: User unknown in virtual mailbox table · Issue #1324 · knadh/listmonk · GitHub
![I don't receive Mail in my gmail, the sender recive this ; User unknown in virtual mailbox table!!! - Google Workspace Admin Community I don't receive Mail in my gmail, the sender recive this ; User unknown in virtual mailbox table!!! - Google Workspace Admin Community](https://storage.googleapis.com/support-forums-api/avatar/profile-11446-15299734327876804163.jpg)
I don't receive Mail in my gmail, the sender recive this ; User unknown in virtual mailbox table!!! - Google Workspace Admin Community
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550 5.1.0 <*****@******.pl>: Sender address rejected: User unknown in virtual mailbox table - Google Workspace Admin Community
![RÉSOLU] Erreur SMTP 550 5.1.1 : Recipient address rejected : User unknown in virtual mailbox table - Support apps - YunoHost Forum RÉSOLU] Erreur SMTP 550 5.1.1 : Recipient address rejected : User unknown in virtual mailbox table - Support apps - YunoHost Forum](https://forum.yunohost.org/uploads/default/original/2X/e/ed471f169dd0cd819c7df7a2019c84d259fbe8bd.png)