qmail
Qmail is an advanced-level mail transfer agent for the UNIX-based operating systems.
Qmail is an advanced-level mail transfer agent for the UNIX-based operating systems.
This page is designed to help you find out whether qmail is good and if it is the right choice for you.
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Strong security record
qmail was designed by Daniel J. Bernstein with security as the primary goal. It is split into mutually untrusting components that run with minimal privileges, and it avoids risky C library patterns. Its security record is excellent, and Bernstein offered a public bounty for years that went unclaimed for a verified security hole in the core design.
Modular architecture
The system is broken into small programs (qmail-smtpd, qmail-send, qmail-queue, qmail-local, qmail-remote and others), each with a narrow job. This makes the code easier to audit, limits the damage of any single bug, and lets administrators replace or extend individual pieces.
Reliable queue and delivery
qmail uses a robust queue design and Maildir delivery, which avoids file locking and mailbox corruption problems. Messages are written safely to disk before acceptance is acknowledged, which reduces the risk of lost mail even after crashes or power failures.
High performance and efficiency
qmail uses massive parallel delivery, with configurable concurrency, and has a small resource footprint. It was much faster than Sendmail in its day and handles large volumes of mail, including mailing lists, well on modest hardware.
Simple configuration
Configuration is done through small plain-text files in the control directory instead of a large, complicated config language like Sendmail's. Behavior is generally easy to understand and predictable, and the Maildir and .qmail forwarding files give users flexible per-user delivery control.
We have collected here some useful links to help you find out if qmail is good.
Check the traffic stats of qmail on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of qmail on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of qmail's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of qmail on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about qmail on Reddit. This can help you find out how popualr the product is and what people think about it.
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Is qmail good? This is an informative page that will help you find out. Moreover, you can review and discuss qmail here. The primary details have not been verified within the last quarter, and they might be outdated. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.
