Requirements

Hardware

• A standalone machine is required to run Spider.

• Supported CPU architectures are:

  • x86_64 / amd64
  • arm64
  • arm7
  • RISC-V 64bit

  Contact us if you need to run Spider on a machine with different CPU architecture.

• At least 1GB memory is required.

  Spider processes N email messages concurrently (N is same as CPU cores on your machine), if max size of single message (allowed by your mail server) is 20MB, then Spider requires at least N * 20MB memory.

  Spider daemon process uses about 100MB memory.

Spider compresses and encrypts messages before saving to disk, they're CPU-heavy works, so CPU resource is more important than memory.

Operating System

• All systemd-based Linux distributions should work fine.

  These Linux distributions are officially tested:

  • CentOS Stream
  • Rocky Linux
  • AlmaLinux
  • Debian
  • Ubuntu

  Spider is written in Golang programming language, no external dependences required on server OS, feel free to contact us if you need to run Spider on an non-systemd system.

Network and Firewall

Spider listens on network ports 25 and 8080 by default, if you have a valid ssl cert, port 443 is used instead of 8080. They must be open in your network firewall.

• Network port numbers are configurable.
• Port 25 is SMTP service, used to accept emails from your mail server.
• Port 8080 is web console.

Spider also connect to https://lic.spiderd.io to check new version and license info, so please make sure it's reachable.

Storage

Disk space totally depends on the emails you're going to archive.

• Archived email data is about 60% large of the original mailboxes.
• The full-text index data is about 5% large of the original mailboxes.
• SQL databases grow slowly while it archives more and more emails. 100 million emails may generate 20GB databases.