I discovered that no matter how you configure aaPanel (disable IPv6, point reverse DNS records, open port 25, standard records), Ubuntu will not work effectively and will definitely end up in spam when sending to Gmail. After I switched to Debian 11 and performed the same actions in aaPanel, such as: Request the service provider to open port 25. Point the Reverse IP of the VPS server to the hostname. Install aaPanel with LAMP model (nginx, mysql, etc.). Download Redis ( 7.0 ) -> set a random password. Add hostname and request Let's Encrypt SSL. Download Mail Server Plugin -> Configure SSL in Postfix smtpd_tls_cert_file = /www/server/panel/vhost/ssl/**hostname-for-you**/fullchain.pem smtpd_tls_key_file = /www/server/panel/vhost/ssl/**hostname-for-you**/privkey.pem Don't forget to replace hostname-for-you with your hostname. Add the domain and the records as usual, and that's it. This is a temporary measure to help prevent your email from going directly to the spam folder in Gmail. At the same time, I hope the aaPanel team can promptly review and fix a very serious issue where emails sent on Ubuntu go to the spam folder (starting from version 7.0.22).

Managing servers smoothly requires keeping your system tools up to date and well configured. Accessing the kubernetes dashboard latest version provides real-time insights and simplifies cluster management.It’s a powerful way to monitor and optimize your deployments efficiently.

Debian 11 really makes managing a mail server smooth and reliable. I’ve noticed fewer glitches and faster performance compared to older setups. This guide highlights some useful tips for keeping everything running efficiently.

[Important] The mail server operates efficiently with Debian 11

chuongmerchant

I discovered that no matter how you configure aaPanel (disable IPv6, point reverse DNS records, open port 25, standard records), Ubuntu will not work effectively and will definitely end up in spam when sending to Gmail. After I switched to Debian 11 and performed the same actions in aaPanel, such as:

Request the service provider to open port 25.
Point the Reverse IP of the VPS server to the hostname.
Install aaPanel with LAMP model (nginx, mysql, etc.).
Download Redis ( 7.0 ) -> set a random password.
Add hostname and request Let's Encrypt SSL.
Download Mail Server Plugin -> Configure SSL in Postfix

smtpd_tls_cert_file = /www/server/panel/vhost/ssl/**hostname-for-you**/fullchain.pem smtpd_tls_key_file = /www/server/panel/vhost/ssl/**hostname-for-you**/privkey.pem

Don't forget to replace hostname-for-you with your hostname.

Add the domain and the records as usual, and that's it.

This is a temporary measure to help prevent your email from going directly to the spam folder in Gmail.

At the same time, I hope the aaPanel team can promptly review and fix a very serious issue where emails sent on Ubuntu go to the spam folder (starting from version 7.0.22).

aaPanel_Kern

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