![The Perfect Server - Ubuntu 20.04 with Apache, PHP, MariaDB, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.2 The Perfect Server - Ubuntu 20.04 with Apache, PHP, MariaDB, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.2](https://www.howtoforge.com/images/featured/perfect_server_ubuntu_2004_apache.jpg)
The Perfect Server - Ubuntu 20.04 with Apache, PHP, MariaDB, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.2
![Relay Recipients and mail route (postfix transport) not working | Howtoforge - Linux Howtos and Tutorials Relay Recipients and mail route (postfix transport) not working | Howtoforge - Linux Howtos and Tutorials](https://forum.howtoforge.com/ezoimgfmt/www.extremeleadprogram.com/misc/images/aer1.png?ezimgfmt=rs:380x399/rscb5/ngcb5/notWebP)
Relay Recipients and mail route (postfix transport) not working | Howtoforge - Linux Howtos and Tutorials
![Relay Recipients and mail route (postfix transport) not working | Howtoforge - Linux Howtos and Tutorials Relay Recipients and mail route (postfix transport) not working | Howtoforge - Linux Howtos and Tutorials](https://forum.howtoforge.com/ezoimgfmt/www.extremeleadprogram.com/misc/images/main1.png?ezimgfmt=rs:380x324/rscb5/ngcb5/notWebP)
Relay Recipients and mail route (postfix transport) not working | Howtoforge - Linux Howtos and Tutorials
![The Perfect Server - Ubuntu 20.04 with Apache, PHP, MariaDB, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.2 The Perfect Server - Ubuntu 20.04 with Apache, PHP, MariaDB, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.2](https://www.howtoforge.com/images/ubuntu_20.04_perfect_server_apache/big/phpmyadmin-apache2.png)
The Perfect Server - Ubuntu 20.04 with Apache, PHP, MariaDB, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.2
![The Perfect Server - Ubuntu 20.04 with Apache, PHP, MariaDB, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.2 The Perfect Server - Ubuntu 20.04 with Apache, PHP, MariaDB, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.2](https://www.howtoforge.com/images/ubuntu_20.04_perfect_server_apache/big/dbconfig-common.png)
The Perfect Server - Ubuntu 20.04 with Apache, PHP, MariaDB, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.2
![Relay Recipients and mail route (postfix transport) not working | Howtoforge - Linux Howtos and Tutorials Relay Recipients and mail route (postfix transport) not working | Howtoforge - Linux Howtos and Tutorials](https://forum.howtoforge.com/ezoimgfmt/www.extremeleadprogram.com/misc/images/rr1.png?ezimgfmt=rs:380x374/rscb5/ngcb5/notWebP)
Relay Recipients and mail route (postfix transport) not working | Howtoforge - Linux Howtos and Tutorials
![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)