Exim Alternatives [Page 3]

Blat is a small, efficent SMTP command line mailer for Windows.

Open source SMTP server written in Node.js

Open Source

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

EmailSuccess is an advanced MTA built to handle the most critical reliability, performance, security, and deliverability requirements.

Axigen is an integrated email, calendaring & collaboration platform, built on a Linux mail server technology.

GreenArrow Transactional Email provides a flexible and secure SMTP and API email delivery from application or website.

Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free

Is a collaboration suite (messaging and groupware).

DBMail is a fast, scalable IMAP4 and POP3 server that stores all email and users in a Postgresql...

Open Source

Protect mail server against spam, viruses and malware with Proxmox Mail Gateway security for businesses, government, education and non-profit organizations.

You can use SendGrid via SMTP or our simple to use Web API. Understand how best to utilize SendGrid.

sendEmail is a lightweight, command line SMTP email client.

Open Source

All-in-one email service provider that provides maximum insight and deliverability results for both marketing and transactional emails.

KerioConnect is a commercial mail and groupware server.