


Debian mail server virtual host configuration method
Apr 13, 2025 am 11:36 AMConfiguring a virtual host for mail servers on a Debian system usually involves installing and configuring mail server software (such as Postfix, Exim, etc.) rather than Apache HTTP Server, because Apache is mainly used for web server functions. Here are the basic steps for configuring a mail server virtual host:
Install Postfix mail server
- Update the system package :
sudo apt update sudo apt upgrade
- Install Postfix :
sudo apt install postfix
During the installation process, you will be prompted to select the configuration type of the mail server, usually select "Internet Site".
- Configure Postfix : After the installation is completed, edit Postfix's main configuration file /etc/postfix/main.cf, and configure it according to your domain name and mail server settings. For example:
myhostname = mail.example.com mydomain = example.com myorigin = $mydomain inet_interfaces = all mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 home_mailbox = Maildir/
- Restart Postfix service :
sudo systemctl restart postfix
Configure the virtual host
- Create a mail directory : Create a mail directory for each virtual host, for example:
sudo mkdir -p /var/mail/vhosts/example.com
- Edit the virtual host configuration file : Create a new configuration file in the /etc/postfix/vhosts/ directory, such as example.com.cf, and add the corresponding configuration directive:
VirtualHost *:25 ServerName example.com ServerAlias ??www.example.com DocumentRoot /var/mail/vhosts/example.com Maildir $HOME/Maildir User example Group example UMask 002 PostfixMaster /usr/sbin/postmaster -v
- Enable virtual host : After creating the configuration file, you need to create a symbolic link to the /etc/postfix/sites-enabled/ directory to enable the virtual host configuration:
sudo ln -s /etc/postfix/vhosts/example.com.cf /etc/postfix/sites-enabled/
- Restart the Postfix service : Finally, restart the Postfix service to apply the changes:
sudo systemctl restart postfix
Configure a firewall
If you use UFW (Uncomplicated Firewall) to manage your firewall, you can allow SMTP (port 25), IMAP (port 143), and POP3 (port 110) traffic:
sudo ufw allows 25/tcp sudo ufw allows 143/tcp sudo ufw allows 110/tcp sudo ufw enable
Test the mail server
You can use telnet or mail clients (such as Outlook, Thunderbird, etc.) to test whether the configuration of the mail server is correct. For example, use telnet to connect to a mail server:
telnet localhost 25
In a telnet session, enter the following command to test the connection:
HELO localhost MAIL FROM:<sender> RCPT TO:<recipient> DATA Subject: Test Email This is a test email. . QUIT </recipient></sender>
The above steps are the basic method of configuring a mail server virtual host on a Debian system. Depending on specific needs, advanced functions such as email forwarding and anti-spam measures may be further configured.
The above is the detailed content of Debian mail server virtual host configuration method. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undress AI Tool
Undress images for free

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Contents 1. What is ICN? 2. ICNT latest updates 3. Comparison and economic model between ICN and other DePIN projects and economic models 4. Conclusion of the next stage of the DePIN track At the end of May, ICN (ImpossibleCloudNetwork) @ICN_Protocol announced that it had received strategic investment in NGPCapital with a valuation of US$470 million. Many people's first reaction was: "Has Xiaomi invested in Web3?" Although this was not Lei Jun's direct move, the one who had bet on Xiaomi, Helium, and WorkFusion

As July 2025 approaches, the crypto market is hotly discussing which tokens may bring high returns. Are names like Pi, PEPE and FloppyPepe really worth the risky investment? Potential cryptocurrencies worth paying attention to in July 2025: virtual fire or real gold? As mid-2025, the heat of discussions on high-yield crypto assets continues to heat up. Bitcoin trends and "altcoin season" expectations have attracted investors' attention. Do tokens like PiNetwork, PEPE and FloppyPepe have the potential to bring considerable investment returns? Let's analyze its prospects one by one. Altcoin Market: Can July get what it wants? Against the backdrop of Bitcoin’s expected record of historical highs, the “altcoin season” seems to be brewing. Back

In today's era of rapid development of technology, the integration of artificial intelligence and blockchain is gradually becoming a new trend. The Sahara AI (SAHARA) project came into being, and it is committed to creating the first full-stack AI native blockchain platform, making the future of artificial intelligence more accessible, fair and just, and open to everyone.

BNB is a platform token issued by Binance and has now become a native functional token of the BNB Chain ecosystem. Its main uses include 1. Transaction fee discounts; 2. BNB Chain fuel fee; 3. Participate in the Launchpad project; 4. Payment and consumption. The recommended orders of top exchanges are: 1. Binance, providing the deepest BNB liquidity; 2. Ouyi, comprehensive product line; 3. Huobi, stable and safe operation; 4. Gate.io, rich currency selection; 5. KuCoin, many emerging projects; 6. Kraken, famous for its safety and compliance.

How do novice users choose a safe and reliable stablecoin platform? This article recommends the Top 10 stablecoin platforms in 2025, including Binance, OKX, Bybit, Gate.io, HTX, KuCoin, MEXC, Bitget, CoinEx and ProBit, and compares and analyzes them from dimensions such as security, stablecoin types, liquidity, user experience, fee structure and additional functions. The data comes from CoinGecko, DefiLlama and community evaluation. It is recommended that novices choose platforms that are highly compliant, easy to operate and support Chinese, such as KuCoin and CoinEx, and gradually build confidence through a small number of tests.

Against the backdrop of violent fluctuations in the cryptocurrency market, investors' demand for asset preservation is becoming increasingly prominent. This article aims to answer how to effectively hedge risks in the turbulent currency circle. It will introduce in detail the concept of stablecoin, a core hedge tool, and provide a list of TOP3 stablecoins by analyzing the current highly recognized options in the market. The article will explain how to select and use these stablecoins according to their own needs, so as to better manage risks in an uncertain market environment.

This article will discuss the world's mainstream stablecoins and analyze which stablecoins have the risk aversion attribute of "gold substitute" in the market downward cycle (bear market). We will explain how to judge and choose a relatively stable value storage tool in a bear market by comparing the market value, endorsement mechanism, transparency, and comprehensively combining common views on the Internet, and explain this analysis process.

Explore Remittix (RTX), Monero (XMR) and Crypto-Fiat Trends: How these projects shape the future of cryptocurrencies through practicality and community orientation. Remittix, Monero and Cryptocurrency Evolution: What is the hottest speculation? The crypto market is always in a dynamic change, and new and old projects are competing for investors' attention. Currently, Remittix (RTX), Monero (XMR) and crypto-fiat currency directions are becoming the focus of discussion. Let’s find out what driving forces are behind this wave of popularity? Remittix: The emerging token with emerging potential is gradually gaining market attention, and its development trajectory has been compared to the early stages of Bitcoin and Ethereum by some people. "CryptoR
