Poste.io

Core Features

• Modern web interface: manage domains, users, mailboxes, and all settings from a clean, user-friendly panel.
• Anti-spam and antivirus: built-in protection against spam, viruses, malware, and phishing.
• Multiple domain support: host unlimited domains, mailboxes, and aliases on one server.
• Integrated webmail: access your mailboxes from anywhere using the built-in webmail client.
• Automatic SSL certificates: easy, secure connection setup with Let’s Encrypt.
• Backup and restore: built-in backup tools for safe and easy data recovery.
• Monitoring and logs: view server activity, mail flow, and security events in real time.
• Self-hosted and open-source: deploy poste.io on your own server for privacy and full control.

Deployment Features

Time

20–30 min

OS

RAM

4 GB

Disk

40 GB

Note

By default, we install the latest stable version of the software from the developer's website or official repositories.

• Installed software:
  • Docker CE
  • Docker Compose
• Used containers:
  • analogic/poste.io
• Open ports:
  • 80, 443 – Web access (HTTP/HTTPS)
  • 25 (SMTP), 465 (SMTPS), 587 (SMTP Submission)
  • 993 (IMAPS), 995 (POP3S), 143 (IMAP), 110 (POP3)
  • 4190 – Sieve mail filtering (ManageSieve)
• Files path: /opt/poste

Getting Started After Poste.io Deployment

After completing your payment, you will receive an email at the address provided during registration notifying you that your server is ready. This email will include the IP address of your VPS and login credentials to access the Poste.io web interface:

• Link: https://ip/admin
• User: [email protected]
• Password: ****** (Sent via email)

To access Poste.io, log in with your administrator account. Enter your username and password on the login page to securely manage your mail and server settings.

Initial Setup

After logging into poste.io, you’ll see a dashboard with key server statistics: number of users, domains, delivery counts, and free disk space. The menu on the left gives fast access to mailbox management, domains, quarantine, logs, system status, and advanced server settings. All sections are clearly grouped for easy navigation and everyday administration:

1. Dashboard: See server health, usage stats, mail delivery counts, and free space at a glance.
2. Email accounts: Manage all user mailboxes: add, edit, or remove accounts with ease.
3. Domains & aliases: Add or manage multiple domains and email aliases for each user.
4. Quarantine & delivery queue: View and release quarantined emails, manage the delivery queue in real time.
5. Logs & monitoring: Check live logs for delivery, relaying, DMARC, and user activity; monitor server events.
6. Blacklist/Whitelist: Configure sender and recipient filters to block or allow specific emails.
7. Server & system settings: Adjust global server options, set limits, manage SSL certificates, and more.
8. User account & API: Change your password, manage account details, and access API functions.

Updating Poste.io

cd /opt/poste
docker stop mailserver
cp -a data "data-$(date +%Y-%m-%d_%H-%M-%S)"
docker compose pull
				docker compose up -d

[root@server poste]# cd /opt/poste
[root@server poste]# docker stop mailserver
mailserver
[root@server poste]# cp -a data "data-$(date +%Y-%m-%d_%H-%M-%S)"
[root@server poste]# docker compose pull
[+] Pulling 1/1
✔ mailserver Pulled
[root@server poste]# docker compose up -d
[+] Running 1/1
				✔ Container mailserver  Started

Opening SMTP Ports

For security reasons, outgoing TCP ports (25, 465, and 587) are blocked by default on all VPS servers. This measure aims to prevent spam distribution. To lift the block, follow these steps:

1. Register your domain zone. The A-record for your domain must point to your server’s IP address.
2. Submit a request to technical support specifying that you need to open outgoing SMTP ports for sending email and the domain (or subdomain) from which it will be sent.
3. After analyzing your domain name, we will make a decision on opening the SMTP ports and notify you.