Enterprise E-Mail Solution

Secure, Reliable, Spam, Malware & Virus-Free E-Mail Server Solution.

Let us host all your emails in our secure email servers! You get a Virus, SPAM, Malware, FREE reliable email system!. Linux mail server has been tested for volumes as high as 300,000 transactions/day on a simple hardware comprising a Desktop having 512Mb RAM and operating on the Fedora, Redhat, SentOS, BSD and Ubuntu etc…

Key Features:

  • Unlimited email ID’s inbox for dedicated server.
  • Web based Control panel Tools with filtering rules.
  • Unlimited attachment can send thru SIS Linux mail server
  • Multiple virtual domain hosting, with managed quota system.
  • Incoming / Outgoing copies of all mail boxes in separate mailbox
  • Auto respond & Mail Forwarders/ Alias
  • Routing mail to another mail server
  • Whitelist domains, Sub-domains, Email ID’s
  • Limiting attachment data size and deny permission to send specific attachments.
  • Blacklist domains, sub-domains, Email ID’s to stop spam.
  • Mail log analysis tool and more…


  • No sophisticated licensing & Server space cost.
  • When hosted in-house, no limit on web space.
  • No limitation on number of Mail ID’s/inboxes
  • Reliable Secure Linux Server with no limits.
  • Multiple domains and thousands of Email ID’s can run on your existing hardware.

Hosted Mail Server

Your business, whether large or small, needs Email , especially when the reliability of email becomes one of the important factors for you to reach customers and deal with customers. A failure to arrive in time or lose all can hurt sales or worse than misleading the two.


If you want to have email on your own domain name you need someone to host that email for you. We at Open Technology Solutions offer you an email hosting service that scales to any number of mailboxes you need. Our email service includes generously sized mailboxes, webmail access and integrated virus, spam, malware scanning as a standard feature.

Core Features:

  • Custom mailboxes. Get professional your company/domain specific email i.e. email@your-domain.
  • Generous 25GB storage per mailbox. This is a very large mailbox that you will have a tough time filling up.
  • Unlimited aliases. Set up as many additional email addresses as you like and point them to your mailbox.
  • Up to 50MB attachments. We’re not advising you should send emails that large, but if you need to, we can handle it.
  • Premium Anti-Spam, Anti-Malware and Anti-Virus filters. Three independent scanning layers help to keep your inbox safe and clean from span.
  • Secure IMAP/POP connection. Connect to your mailbox from any email enabled device including Microsoft Outlook, Mac Mail and mobile phones.
  • User friendly web-mail. Access and send email from any browser, any time, anywhere.
  • Web-mail shared contacts and calendar. Share contacts and calendar between business colleagues using web-mail.
  • Custom email filtering. Set up custom email rules to redirect messages wherever your want.
  • Domain aliases. Have more than one domain? You can have email for multiple domains in one mailbox.

Additional Services:

  • Migration If you have existing mailboxes we can migrate any email on your existing server using a secure and reliable migration tool.
  • Email archiving We can add unlimited archiving of historic emails. With unlimited storage you keep all your emails backed up on our server, forever.
  • Mobile Sync. We can enable real time email (push), calendar and contact syncing for your iPhone or Android.

If you’d like to discuss you email hosting requirements in more detail please give us a call on  +92 423 577-3574.