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.
We have collected here some useful links to help you find out if OpenSMTPD is good.
Check the traffic stats of OpenSMTPD 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 OpenSMTPD 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 OpenSMTPD'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 OpenSMTPD 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 OpenSMTPD on Reddit. This can help you find out how popualr the product is and what people think about it.
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
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
OpenSMTPD, a free and open-source implementation of the Simple Mail Transfer Protocol (SMTP), has garnered a positive reputation within the email server and MTA (Mail Transfer Agent) space. Its development ethos prioritizes security, reliability, and simplicity in configuration, making it an appealing choice for both individuals and organizations seeking robust alternatives to commercial solutions like Microsoft Exchange Server. Given its focus on supporting common use cases with ease, OpenSMTPD emerges as a well-regarded option amongst its peers.
In the landscape of SMTP servers and MTAs, OpenSMTPD sits among prominent counterparts such as Postfix, Exim, and Sendmail. What sets OpenSMTPD apart is its streamlined design and adherence to security principles, often highlighted in user discussions as a lightweight yet formidable solution. As noted in community forums, OpenSMTPD's compatibility with various operating systems, including OpenBSD, and packages available for distributions like Debian and Alpine Linux, reinforce its flexibility and usability across different environments.
The product has gained traction in niche deployments, particularly within environments utilizing OpenBSD, where users advocate for its ease of integration with other tools. For instance, a user transition from Postfix to OpenSMTPD within an internal Linux-based SMTP relay setup aligns with the broader narrative of OpenSMTPD as an efficient and compliant solution, tailored to meet standards and lightweight requirements.
OpenSMTPD also shines in its support for essential email security measures, such as DKIM (DomainKeys Identified Mail) signatures. Community members have successfully integrated Rspamdโa high-performance spam scannerโwith OpenSMTPD, further enhancing email security and deliverability. The seamless substitution of legacy tools, such as DKIMproxy, demonstrates OpenSMTPDโs modern extensibility and the ability to accommodate emerging security standards seamlessly.
In conclusion, OpenSMTPD represents a competent, streamlined alternative within the SMTP server category, particularly for those who prioritize security, ease of configuration, and compliance with established standards. Its adoption within diverse environments, from OpenBSD to various Linux distributions, highlights its versatility and reliability. As such, OpenSMTPD continues to be recognized and respected in the technical community for delivering on its core design goals while fostering an environment conducive to secure, standards-compliant email operations. The ongoing discussions and favorable user experiences with OpenSMTPD reinforce its status as a viable alternative to more commercial offerings, balancing functionality with a commitment to open-source principles.
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Is OpenSMTPD good? This is an informative page that will help you find out. Moreover, you can review and discuss OpenSMTPD 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.
