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What is OpenSMTPD?

OpenSMTPD is a free implementation of the SMTP protocol designed for email communication on the server side, adhering to the specifications outlined in RFC 5321 while also including various standard extensions. This software allows standard machines to engage in email exchanges with other systems that operate under the SMTP protocol. Created out of a need for a more effective alternative to existing email solutions, OpenSMTPD provides a thorough SMTP implementation. The project is primarily led by developers Gilles Chehade and Eric Faurot, with significant contributions from many OpenBSD developers and collaborators from diverse communities. The ongoing development of OpenSMTPD demonstrates a strong dedication to enhancing the functionality and reliability of email servers across multiple platforms. As a result, it has gained popularity among users seeking a robust and flexible email server solution.

What is Eudora Internet Mail Server?

The restrictions on relay functionality have been completely revamped to include a more intuitive interface that enhances user control over security protocols associated with relays. In addition, EIMS has introduced a proprietary Domain Name Resolver (DNR) that aims to rectify the shortcomings of the Open Transport DNR and offers better performance than the OS X DNR, although it does not yet support non-recursive DNS configurations. A new feature has been added with the inclusion of an SMTP Submit port, which operates by default on TCP port 587, effectively replicating the capabilities of the traditional SMTP port and proving especially advantageous for users whose internet service providers impose limitations on port 25. Users can now set a cap on the number of recipients allowed per email, and the previously compulsory Expand SMTP Addresses feature can now be turned off, marking a significant shift from EIMS versions 3.1 and earlier where it could not be disabled. Moreover, the SMTP server on both ports 25 and 587 is now capable of logging Telnet connections and identifying behaviors similar to port scanning, which significantly bolsters security monitoring functions. Overall, these enhancements are designed to empower users with improved flexibility and security in their email management, thus adapting to contemporary needs. This comprehensive update reflects a commitment to evolving user demands and technological advancements in email services.

Media

Media

Integrations Supported

Additional information not provided

Integrations Supported

Additional information not provided

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Trial Offered?
Free Version

Pricing Information

Free
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

OpenSMTPD

Company Website

www.opensmtpd.org

Company Facts

Organization Name

Eudora Internet Mail Server

Company Website

www.eudora.co.nz/

Categories and Features

Categories and Features

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