Security-first transactional email: SMTP relay and REST API for password resets, receipts, 2FA and notifications. 100% owned infrastructure, strict sender vetting, human deliverability, ISO 27001/27701/HIPAA, native SendGrid/Mailgun compatibility.
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Which is more popular?
Sendmail might be a bit more popular than
Postfix.
We know about 1 link to it since March 2021
and only 1 link to Postfix.
social mentions
1 vs 1
Email popularity
64% vs 36%
alternatives listed
109 vs 67
Base details
Website, pricing, platforms and company facts side by side.
Security Postfix is known for its robust security features, including strong defenses against spam and malware.
Performance Postfix is designed to be efficient under heavy loads, making it suitable for both small and large-scale email servers.
Compatibility Postfix is compatible with various mail protocols such as SMTP, making it versatile for different email infrastructures.
Reliability Postfix is highly reliable, offering consistent performance and uptime, which is critical for mail servers.
Configuration Postfix offers a flexible and understandable configuration system, allowing administrators to fine-tune the server settings as per their needs.
Community Support There is a strong community and extensive documentation available, providing support and resources for troubleshooting and advanced configurations.
Lightweight Postfix is relatively lightweight, ensuring that it doesn't consume excessive system resources.
Possible disadvantages
Complexity Despite its powerful features, setting up and configuring Postfix can be complex, especially for beginners who are not familiar with mail servers.
Learning Curve There is a learning curve associated with understanding its configuration files and parameters, which can be daunting for new users.
Limited GUI Options Postfix does not come with a built-in graphical user interface, making it less accessible for users who prefer GUI-based management.
Dependency on Other Software Postfix often relies on additional software (like Dovecot for IMAP/POP) for full functionality, which can complicate setup and maintenance.
Debugging Complexity Debugging issues with Postfix can be complicated due to its extensive feature set and numerous configuration options.
Established Reputation Sendmail has been in operation since the early days of email, providing a solid foundation and reliability in Unix-based email systems. Its long-standing presence indicates a mature and well-understood system.
Highly Configurable Sendmail offers extensive configuration options, allowing administrators to customize their setup to accommodate complex email routing and handling requirements.
Open Source As an open-source software, Sendmail offers transparency in its operations, enabling community contributions and adaptations to specific needs without licensing costs.
Wide Compatibility Sendmail is compatible with a variety of email standards and protocols, which facilitates integration with different email systems and services.
Possible disadvantages
Complex Configuration The extensive configurability of Sendmail comes at the cost of a steep learning curve; its configuration files are complex and can be challenging for beginners.
Security Concerns Historically, Sendmail has had several vulnerabilities, partly due to its complexity and pervasive use. It requires diligent updates and security management.
Less User-Friendly Compared to more modern solutions, Sendmail lacks a user-friendly interface, making it harder for less technically inclined users to manage and configure.
Performance Limitations Sendmail can be less efficient than some modern mail transfer agents in terms of resource usage and performance, especially in high-volume environments.
Analysis
An editorial look at what each product does well and who it suits.
PostfixSendmail
Overall verdict
Yes, Postfix is considered good due to its reliability, security, and scalability. It is widely used in the industry and is continually maintained and updated, which ensures it remains a dependable choice for mail server needs.
Why this product is good
Postfix is recognized for its robust architecture, strong security features, and ease of administration. With its efficient handling of large volumes of email, it is a preferred choice for many system administrators. Additionally, Postfix has comprehensive documentation and an active community for support, making it accessible even for those who might be new to email servers.
Recommended for
Postfix is ideal for businesses, educational institutions, or individual users who need a robust and secure email server. It is especially recommended for environments requiring high-performance and stable email systems, as well as those looking for a solution that can handle large-scale email distribution efficiently.
Postfix is an MTA that allows the user to receive and deliver electronic mail. The platform is open-sourced that is easy to administer, attempts to be fast, and a secure way for the usage of EM. It is also known by...
Postfix is very emphatic when it comes to security. Like iRedMail, it is able to encrypt your sessions and perform certificate-based authentication to keep your mail services secure, private, and protected. Postfix...
Recommendations tracked on public social media and blogs since March 2021.
Postfix1 mentionSendmail1 mention
OVH VPS Postfix can't receive external emails
Read the documentation on postfix.org and/or buy one of the many available Postfix books (it really helps to understand the Postfix philosophy).
Source:
over 5 years ago
Sendmail and Exchange online - 550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup
We are using sendmail and Exchange online with to different identies.
We are experience problem that we want to receive Teams invitation to our @ sendmail.com address, when I forward teams invitation fromexchange online identite to...
Source:
over 5 years ago
Alternatives to Postfix and Sendmail
When comparing Postfix and Sendmail, you can also consider the following products.
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.
Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.
Exim
Mail-in-a-box
Zimbra
qmail
KumoMTA
iRedMail
OpenSMTPD
sSMTP
MailerQ
Courier-MTA
