![Erreur SMTP 550 5.1.1 : Recipient address rejected : User unknown in virtual mailbox table - Support apps - YunoHost Forum 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/1/10f4df0f526c159f52dee4ddeab0fcc5c1e13f44.png)
Erreur SMTP 550 5.1.1 : Recipient address rejected : User unknown in virtual mailbox table - Support apps - YunoHost Forum
![Freeman: Corriger l'erreur "550 5.1.1 User unknown" lors l'envoi d'un mail à un groupe de distribution Freeman: Corriger l'erreur "550 5.1.1 User unknown" lors l'envoi d'un mail à un groupe de distribution](https://2.bp.blogspot.com/-aO7RfLkNToc/WB-nBBaW9SI/AAAAAAAAVKU/uhCZvFVCFTEevdPI_rJ2uBkwCYDFsp_pQCLcB/w1200-h630-p-k-no-nu/S%25C3%25A9lection_126.jpg)
Freeman: Corriger l'erreur "550 5.1.1 User unknown" lors l'envoi d'un mail à un groupe de distribution
![Erreur SMTP 550 5.1.1 : Recipient address rejected : User unknown in virtual mailbox table - Support apps - YunoHost Forum 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)
Erreur SMTP 550 5.1.1 : Recipient address rejected : User unknown in virtual mailbox table - Support apps - YunoHost Forum
![Freeman: Corriger l'erreur "550 5.1.1 User unknown" lors l'envoi d'un mail à un groupe de distribution Freeman: Corriger l'erreur "550 5.1.1 User unknown" lors l'envoi d'un mail à un groupe de distribution](https://2.bp.blogspot.com/-aO7RfLkNToc/WB-nBBaW9SI/AAAAAAAAVKU/uhCZvFVCFTEevdPI_rJ2uBkwCYDFsp_pQCLcB/s1600/S%25C3%25A9lection_126.jpg)
Freeman: Corriger l'erreur "550 5.1.1 User unknown" lors l'envoi d'un mail à un groupe de distribution
![Non-Delivery Report: [550 5.4.1 Recipient address rejected: Access denied] – Exclaimer Cloud Knowledge Base Non-Delivery Report: [550 5.4.1 Recipient address rejected: Access denied] – Exclaimer Cloud Knowledge Base](https://exclaimerkbimages.blob.core.windows.net/images/Exclaimer%20Cloud/Signature%20Rules/NDR_MSActiveDirectory_OptiionalFeatures.png)