Kingmailer vs. Postfix Comparison


Kingmailer KingSMTP.com	Postfix	+	+
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About KingSMTP.com (formerly known as Kingmailer.co, founded in 2017) is a Transactional SMTP service provider. It’s designed to help businesses reliably send emails such as order confirmations, password resets, or notifications, but it’s not intended for mass email campaigns or marketing.	About What is Postfix? It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Now at Google, Wietse continues to support Postfix. Postfix runs (or has run) on AIX, BSD, HP-UX, IRIX, LINUX, MacOS X, Solaris, Tru64 UNIX, and other UNIX systems. It requires ANSI C, a POSIX.1 library, and BSD sockets. Postfix attempts to be fast, easy to administer, and secure. The outside has a definite Sendmail-ish flavor, but the inside is completely different. Multiple SMTP deliveries over the same TLS-encrypted connection. This reuses the existing tlsproxy(8) and scache(8) services. MySQL stored procedure support. Gradual degradation: in many cases a Postfix daemon will log a warning and continue providing the services that are still available, instead of immediately terminating with a fatal error. Postfix can set the execute bit on a queue file. If this does not work, then no mail will ever be delivered.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Supported Linux Supported Cloud Not Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Small business owners, webmasters, developers, IT department, startups, entrepreneurs, Android/iOS app developers.	Audience Anyone interested in a mail server solution to manage, administer, and secure emails
Support Phone Support Supported 24/7 Live Support Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Not Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $0 per month $0 Per month. Email as a service. Free Version Supported Free Trial Supported	Pricing No information available. Free Version Not Supported Free Trial Not Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 5.0 / 5 ease 5.0 / 5 features 5.0 / 5 design 5.0 / 5 support 5.0 / 5 Read all reviews
	Pros & Cons from Real Users Pros 1. Easy to deploy. 2. Easy to customize at an intense level. 3. Easy to integrate with DKIM and DMARC. 4. Various workaround available. 5. Lightweight to operate. Cons Sometimes troubleshooting deliveries can be troublesome. Integration with Social media like LinkedIn and Facebook inside Postfix is not possible yet.
Training Documentation Supported Webinars Not Supported Live Online Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information KingSMTP.com Founded: 2017 Earth kingsmtp.com	Company Information Postfix United States www.postfix.org/features.html
Alternatives SMTP Senpai MailSenpai	Alternatives Apache James The Apache Software Foundation
SMTP.com Ziff Davis	Dovecot
Netcore Email API Netcore	Exim
Photon Console	Postfix AXSMarine
Migomail View All	Rspamd View All
Categories Mail Servers Supported SMTP Supported Transactional Email Supported	Categories SMTP Supported
Show More Features Transactional Email Features A/B Testing Not Supported Contact Database Not Supported Dynamic Content Not Supported Email Monitoring Supported Mailing List Management Not Supported Reporting/Analytics Supported Spam Check Supported Template Management Not Supported
Integrations Azure Marketplace Not Supported Ghost Supported Gmail Supported Gravity Forms Supported IBM Cloud Not Supported ISPConfig Not Supported Joomla! Supported Magento Supported MailArchiva Not Supported MailRoute Not Supported Microsoft Exchange Not Supported Microsoft Outlook Supported Migrateq Not Supported MySQL Not Supported Netdata Not Supported Raptor Email Security Not Supported Rspamd Not Supported VHCS Not Supported WooCommerce Supported WordPress Supported Show More Integrations View All 8 Integrations	Integrations Azure Marketplace Supported Ghost Not Supported Gmail Not Supported Gravity Forms Not Supported IBM Cloud Supported ISPConfig Supported Joomla! Not Supported Magento Not Supported MailArchiva Supported MailRoute Supported Microsoft Exchange Supported Microsoft Outlook Not Supported Migrateq Supported MySQL Supported Netdata Supported Raptor Email Security Supported Rspamd Supported VHCS Supported WooCommerce Not Supported WordPress Not Supported Show More Integrations View All 12 Integrations
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