Top 15 sSMTP Alternative and Similar Softwares | Dec 2024

1. Exim

Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet....... TpSort Score | 4,590,000

2. Microsoft SMTP Server

Available in Windows and Windows Server via the optional IIS role.Configure SMTP e-mail in IIS when you want to deliver e-mail messages from your site. Mail can be delivered immediately or it can be delivered to a file location on disk where it can be retrieved for delivery later. For...... TpSort Score | 42,800,000

3. AuthSMTP

In the simplest terms AuthSMTP is an outgoing SMTP email server, it can be used to send email from any program, application or device that can connect to an SMTP server and authenticate with a username and password.There are some key differences from the SMTP server that your ISP may...... TpSort Score | 194,000,000

4. MX Outbound

MX Outbound is a safe and secure SMTP Mail Relay and SMTP SmartHost service.MX Outbound (aka MX Out) is provided by MX Tools a UK independent SMTP Service Provider (SSP)Service plans to suit all users and companies. From general emailing to running your email marketing campaigns MX Out is for...... TpSort Score | 51,200,000

5. PowerMTA

PowerMTA is an “enterprise” grade infrastructure application for email built to address the challenges of critical digital messaging environments and customer communications. PowerMTA™ is (advanced smtp software) providing unsurpassed reliability and delivery execution, with granular connection controls. Offering superior message throughput, simplified set up and configuration, and visibility through real-time...... TpSort Score | 28,200,000

6. outMail

outMail providing a secure and trusted email relay (also known as SMTP Smart Host or mail proxy)outMail by Prolateral is an independent SMTP service provider exclusively focused upon the execution of outbound email delivery for business, marketing, enterprise and personal applications. With flexible service plans to accommodate all types of...... TpSort Score | 194,000,000

7. Port25 Email Verification

Discover the rich features in PowerMTA that help you adopt and adapt to changing email authentication standards including support for DKIM and SPF and setup for DMARC via an automated testing tool....... TpSort Score | 39,200,000

8. smtp2go

SMTP2GO removes the headaches of email delivery, saving you time and money....... TpSort Score | 193,000,000

9. Courier-MTA

The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Courier provides ESMTP, IMAP, POP3, webmail, and mailing list services within a single, consistent, framework. Individual components can be customized, enabled or disabled at will.Certain...... TpSort Score | 181,000,000

10. Becky! Internet Mail

Becky! Internet Mail is an email client for Windows OS. Becky! Internet Mail supports POP3, IMAP and S/MIME as well as PGP/PGP via add-ons....... TpSort Score | 39,900,000

11. Cypht

Cypht is an Open Source webmail application written in PHP and JavaScript that speaks native IMAP, POP3, and SMTP. This is a third generation E-mail client from the developers of the Hastymail project.Cypht has an evolving feature set, and employs a modular design that provides an unprecedented level of site...... TpSort Score | 181,000,000

12. Dragonfly Mail Agent

A small Mail Transport Agent (MTA), designed for home and office use. Part of DragonFly BSD , it accepts mails from locally installed Mail User Agents (MUA) and delivers the mails either locally or to a remote destination. Remote delivery includes several features like TLS/SSL support and SMTP...... TpSort Score | 23,800,000

13. SmartSerialMail

SmartSerialMail enables you to send emails automatically to a large number of recipients....... TpSort Score | 197,000,000

14. FakeSMTP.net

FakeSMTP is a developer tool for identifying email bugs in web applications. It sits outside your test environment, trapping and redirecting emails as they leave your server. FakeSMTP gives you a simple, automated and reliable method of testing your email platform....... TpSort Score | 197,000,000

15. Sendgrid

Scalable email delivery for transactional emailSendGrid transparently handles DKIM, SPF, ISP rate limits, content inspection, bounces, and spam reports to help users achieve higher deliverability. SendGrid integrates in minutes by just changing three SMTP settings....... TpSort Score | 199,000