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Business email

Business Email Server and Webmail

DRSOFT builds stable and secure business email infrastructure: SMTP, POP3 and IMAP servers, webmail, spam filtering and sender authentication, either as your own mail server or as cloud mail hosting.

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Mail system components

  • SMTP server

    Sends and receives mail. Active-Active clustering supports high availability, with distributed queue processing based on work stealing.

  • POP3 and IMAP server

    Supports the standard mail retrieval protocols and works with mail clients such as Outlook and Thunderbird.

  • Webmail

    A browser-based mail client with a responsive design, so it is comfortable to use on mobile devices as well.

  • Spam filtering

    Machine-learning-based spam filtering, with Proxy Protocol V2 support for accurate tracking of the sending IP address.

  • Admin panel

    Manage mail accounts, quotas, forwarding and auto-replies for each domain from the web.

  • Mail client SDK

    A lightweight library compatible with JDK 8 and later, for embedding SMTP, POP3 and IMAP functions into your own systems.

Email security

  • Sender authentication and anti-spoofing: SPF, DKIM and DMARC.
  • Domain and transport policies: DANE, MTA-STS and TLS-RPT.
  • Encrypted transport: STARTTLS and TLS 1.3.
  • User authentication: SASL.
  • Spam detection: machine-learning-based.

Key features

  • Active-Active: multi-node clustering designed to avoid a single point of failure.
  • High-throughput processing: asynchronous processing based on Netty NIO supports high-volume mail sending.
  • Spam control: machine-learning-based detection of unwanted mail.
  • Real-time monitoring: a live dashboard of mail sending and receiving status.

Ways to deploy

We propose a solution that fits the size of your company, from a mail server on your own domain to cloud mail hosting.

  • A new mail server on your own domain
  • Cloud mail hosting
  • Migration from an existing mail server
  • Introducing spam filtering
  • Introducing webmail

Frequently asked questions

Can we keep using Outlook or Thunderbird?

Yes. The system supports POP3 and IMAP, so it works with mail clients such as Outlook and Thunderbird.

Can we have a mail server on our own domain, or only hosted mail?

Both are possible. We build mail servers on your own domain and also provide cloud mail hosting, and we propose the option that fits your company size.

Can you migrate our existing mail server?

Yes. Migration from an existing mail server is one of the services we handle. Tell us about your current mail environment and we will confirm scope and schedule.

Can we manage mail accounts ourselves?

Yes. The admin panel lets you manage mail accounts, quotas, forwarding and auto-replies for each domain from the web.

Need a business email system?

Use the form below to tell us about your current mail environment and requirements, and we will reply by email.

Send an inquiry

Other services

Contact us

Tell us about your project. We will reply by email.

Address
32, Omok-ro 30-gil, Yangcheon-gu, Seoul, Republic of Korea (1F)
서울특별시 양천구 오목로30길 32, 1층 (신정동)