Software Alternatives & Startups

Postfix Admin VS OpenSMTPD

Compare Postfix Admin VS OpenSMTPD and see what are their differences

Postfix Admin logo Postfix Admin

Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases.

OpenSMTPD logo OpenSMTPD

OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with...
  • Postfix Admin Landing page
    Landing page //
    2023-09-24
  • OpenSMTPD Landing page
    Landing page //
    2019-03-05

Postfix Admin features and specs

  • User-Friendly Interface
    Postfix Admin provides a web-based interface that allows users to easily manage their mail server configurations without needing in-depth technical knowledge.
  • Virtual Domain Management
    Supports multiple virtual domains, enabling users to manage multiple domains from a single Postfix installation.
  • Feature Rich
    Includes features like vacation messages, aliases, and quota management, offering comprehensive mail server management capabilities.
  • Open Source
    Being open source, it allows users to review the source code for security purposes and modify it to meet their specific needs.
  • Community Support
    Has a strong community presence which can be a valuable resource for troubleshooting and advice.

Possible disadvantages of Postfix Admin

  • Complex Initial Setup
    Setting up Postfix Admin can be complex and requires a good understanding of mail server infrastructure, which might not be suitable for beginners.
  • Dependency on Postfix
    It is specifically designed for use with the Postfix mail server, which limits its applicability for users using other mail server solutions.
  • Limited Scalability
    While suitable for small to medium setups, large enterprises may find its feature set and scalability unsuitable for extremely large deployments.
  • Requires Existing Infrastructure
    Depends on an existing MySQL or PostgreSQL database, adding to the complexity and prerequisites needed for operation.
  • Security Concerns
    Being web-based, it imposes the need for proper security measures to protect against potential vulnerabilities that can be targeted by attackers.

OpenSMTPD features and specs

  • Simplicity
    OpenSMTPD is designed to be simple and straightforward, which makes it easier to configure and manage compared to other mail transfer agents. Its configuration syntax is clean and readable.
  • Security-focused
    One of the main goals of OpenSMTPD is to provide a secure mail transfer agent. It is developed by the OpenBSD team, which is known for its emphasis on security.
  • Lightweight
    OpenSMTPD is a lightweight solution, using minimal system resources, making it suitable for systems with lower hardware capabilities or for those looking to optimize performance.
  • Integration with OpenBSD
    As a project developed by the OpenBSD team, OpenSMTPD integrates well with OpenBSD, taking advantage of the system's security features and optimizations.
  • Active Community
    OpenSMTPD has an active development community, which provides timely updates, patches, and support, helping to keep the software secure and reliable.

Possible disadvantages of OpenSMTPD

  • Feature Limitation
    Compared to more established mail servers like Postfix or Exim, OpenSMTPD may lack some advanced features or integrations that larger enterprises might require.
  • Limited Documentation
    The documentation for OpenSMTPD, while improving, is not as comprehensive as that for more widely-used MTAs, which can create a steeper learning curve for new administrators.
  • Less Third-Party Support
    Due to its lesser adoption compared to other MTAs, there might be fewer third-party tools, plugins, and resources available for extending OpenSMTPD's capabilities.
  • Platform Specific Optimization
    While its integration with OpenBSD is a strength, it may not be as optimized for other operating systems, possibly leading to a less efficient experience outside the BSD ecosystem.
  • Community-Centric Development
    Being a smaller, community-driven project, OpenSMTPD may not offer the same level of support or development resources as more commercially backed mail server solutions.

Postfix Admin videos

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OpenSMTPD videos

DAY[0] Episode #31 - kr00k, GhostCat, and more issues from NordVPN, Samsung, OpenSMTPd

Category Popularity

0-100% (relative to Postfix Admin and OpenSMTPD)
Email
63 63%
37% 37
SMTP Servers
0 0%
100% 100
Self-hosted Email
100 100%
0% 0
MTA
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Postfix Admin and OpenSMTPD

Postfix Admin Reviews

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OpenSMTPD Reviews

Best Free and Open Source Alternatives to Microsoft Exchange Server
OpenSMTPD is an implementation of the server-side SMTP protocol, with some additional standard extensions. Its design goals include security, reliability, ease of configuration, and support for common use cases.

Social recommendations and mentions

Based on our record, OpenSMTPD seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Postfix Admin mentions (0)

We have not tracked any mentions of Postfix Admin yet. Tracking of Postfix Admin recommendations started around Mar 2021.

OpenSMTPD mentions (2)

  • Has anyone setup a Linux based internal only smtp relay?
    I've had something of the same experience with Postfix, u/0x29aNull. Check out OpenSMTPD. It is lightweight and standards compliant. I know that there are packages for Debian and Alpine Linux. There may also be ones for Fedora/RHEL derivatives. I use it in my environment on OpenBSD. Source: over 3 years ago
  • DKIM Migration: Rpamd instead of DKIMproxy out on OpenBSD / OpenSMTPD
    When I installed Rspamd with on OpenBSD / OpenSMTPD the other day, DKIMProxy out (dkimproxy_out daemon), which had been got via OpenBSD Ports package system, was used to add DKIM signatures to mails in order to improve security on emails. - Source: dev.to / about 5 years ago

What are some alternatives?

When comparing Postfix Admin and OpenSMTPD, you can also consider the following products

mailcow - An open source mailserver suite.

Postfix - Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.

Modoboa - Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface.

Exim - Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.

Mail-in-a-box - Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

Sendmail - Sendmail is a general purpose internetwork email routing facility that supports many kinds of...