Skip to main content

Basic Postfix Configuration

What default minimal configuration can be done on postfix, check it out below:


Configure in DNS server/provider


mail.sa-bagus.com A record to IP Server

Priority MX to mail.sa-bagus.com


Install


apt-get install postfix


example choose:


internet site: sa-bagus.com


Configure postfix


dpkg-reconfigure postfix


Choose accordingly to your needs like network, limit, and domain.


restart postfix service


now by default inbox will be in /var/mail/ and it is already connected with Linux local account

example adduser emailuser1.

now if example, your Gmail account sends an email to @sa-bagus.com , the email message will be stored default in the /var/mail/


You have default SMTP on port 25, but some cloud providers will block traffic 25 so consider making advanced configuration like SMTPS 465 or 587.


That's.


now even with the default config if your local/cloud server is connected to the internet, it can send and receive email to the public email like Gmail, but maybe if you send the bulk email will mark it as spam, you need an advanced configuration like DKIM, SPX, etc.

Labels:

Comments

Post a Comment

Popular posts from this blog

Troubleshooting WAF, CDN, and Load balancer

 Troubleshooting issues involving a Web Application Firewall (WAF), Content Delivery Network (CDN), and Load Balancer (LB) can be complex. Here is a step-by-step guide, including testing methods and relevant commands to isolate problems at each level. ### Step 1: Check Basic Connectivity 1. **Ping the Website**:    ```sh    ping example.com    ``` 2. **Check DNS Resolution**:    ```sh    nslookup example.com    ``` ### Step 2: Verify Load Balancer 1. **Direct Access to Load Balancer**:    Modify `/etc/hosts` to bypass CDN and WAF, pointing directly to the load balancer’s IP.    ```sh    sudo nano /etc/hosts    ```    Add the line:    ```    LB_IP example.com    ```     2. **Test HTTP Response**:    ```sh    curl -I http://example.com    ```    Check headers and status code to verify the load bal...
Post a Comment
Read more

Soal dan pembahasan LKSN ITNSA

Berikut adalah koleksi soal-soal ITNSA dan beberapa website yang memberikan pembahasan pada event perlombaaan LKS SMK Nasional bidang lomba IT Network Systems Administration. 2014 Palembang Di tahun ini ada 1 soal packet tracer. Di website dibawah ini diberikan juga cara pembahasannya. https://agussas.wordpress.com/2015/04/02/review-soal-lks-nasional-it-network-23-packet-tracer-challenge/ Semua soal:  https://www.dropbox.com/sh/l90zyke2ib5msgv/AAA3kPOFo-zEn4wPOW4a3iMwa?dl=0 dan https://drive.google.com/file/d/18lDhtMjAnPAhkfOJ6uFHsC5j6ycg3K4I/view Pembahasan juga dalam bentuk video di youtube:  https://www.youtube.com/watch?v=8QML594nQBU 2015 Banten Pembahasan:   https://www.youtube.com/watch?v=quDbpC2xSfQ Soal:  https://drive.google.com/file/d/1B09IYfdoGENBL3txSQodpptG1zdQxBWI/view 2016 Malang Soal:   https://drive.google.com/file/d/13-2bRtb5IXO9vxAhLfhghZbDXeUzD0FI/view Pembahasan:   https://www.youtube.com/watch?v=zmUSUZguH24 20...
2 comments
Read more

Daftar juara ITNSA LKS Nasional SMK

Daftar juara ITNSA LKSN SMK *List juara 1: 2008 Jawa Tengah 2009 Banten 2010 DKI Jakarta 2011 Jawa Barat 2012 DI Yogyakarta 2013 Jawa Tengah 2014 Banten 2015 Bali 2016 Kalimantan Selatan 2017 Jawa Barat 2018 Banten 2019 Kepulauan Riau 2020 Banten 2021 Jawa Barat 2022 Banten 2023 Banten 2024 Banten 2025 Banten *Data diatas dikumpulan dari hasil browsing di google
Post a Comment
Read more