Free Account


Select our FREE version and get to use any of our domains, with immediate access to all the server storage and client side encryption and functions as the Unlimited and Business versions, with the only limitation that your server space is reduced to 600MB from 10GB. There is no limit to the number of messages you can send or receive per day, and you have full support 24/7. You can upgrade from the FREE version to any of our other packages below.

  • Unlimited Messages
  • Encrypt to anyone
  • Advertising Free
  • CSV contact import
  • Over 70 languages
  • Own Domain Name
  • Malware Protection
  • Plugin Selection
  • imaps / pop3s / webmail
  • 10GB 600MB Space
  • No attachment cap
  • Lowest market cost
  • Extensive Spam Filters
  • Many webmail templates
  • Domain Control Panel
  • Satcom Compliant
  • Multiple Address Books
  • Global Address Book
  • Cal DAV and Card DAV
  • Multiple Calenders
  • Many mobile templates
  • Highly Customisable
  • On Line support
  • Own Signatures
  • Suitable for all email clients
  • Works on any device
  • Webmail Client per domain
  • No prying eyessnooping
  • GEO Satellite compliant
  • Fetchmail
  • Direct inline AES 256
  • Keyless storage

Webmail can be accessed by any device on https://sigma.email or https://<chosen domain> , logon is your email address, and the password as you selected. For iphone / android or any other type of email client such as outlook or thunderbird, the settings are standard as detailed below

  • IMAP
  • Encryption SSL
  • Server – sigma.email
  • Port 993
  • Authentication – ON
  • SMTP
  • Encryption SSL
  • Server – sigma.email
  • Port 465
  • Authentication – ON