Sendmail Alternatives

Sendmail is described as 'General purpose internetwork email routing facility that supports many kinds of transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over the Internet' and is a Mail Server in the online services category. There are more than 25 alternatives to Sendmail for a variety of platforms, including Linux, Self-Hosted, Windows, BSD and Mac apps. The best Sendmail alternative is Postfix, which is both free and Open Source. Other great apps like Sendmail are Zimbra Collaboration Suite, Mail-in-a-box, Microsoft Exchange and Zentyal.

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Sendmail alternatives are mainly Mail Servers but may also be WebMail Providers or Email Clients. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Sendmail.

Sendmail

Mail Server
Free • Open Source

Sendmail is a general purpose internetwork email routing facility that supports many kinds of transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over the Internet.

More about Sendmail

Sendmail alternatives page was last updated Sep 9, 2022

msmtp
In the default mode, it transmits a mail to an SMTP server (for example at a free mail provider) which takes care of further delivery.
7 msmtp alternatives
License model
- Free • Open Source
Platforms
- Linux
- Xfce
msmtp Features
Network Tools
SMTP Support
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msmtp VS Sendmail
Is msmtp a good alternative to Sendmail?

AtMail Open
AtMail is an open source webmail client written in PHP. We aim to provide a elegant Ajax webmail client for existing IMAP mailservers, with less bloat and a focus on an intuitive, simple user interface.
13 AtMail Open alternatives
License model
- Free • Open Source
Application type
- WebMail Provider
Platforms
- Online
AtMail Open Features
WYSIWYG Support
Multiple languages
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Discontinued
No longer supported.

AtMail Open VS Sendmail
Is AtMail Open a good alternative to Sendmail?

iMail
Fast, safe, heavy mail solution. Web-client access, LAN or WAN self-hosted server, maintenance-free design. No Windows server and database server required, unlimited mail accounts, storage, attachment size, custom logo. Free for commercial use.
43 iMail alternatives
License model
- Paid • Proprietary
Application types
- Mail Server
- WebMail Provider
Platforms
- Windows
- Self-Hosted
iMail VS Sendmail
Is iMail a good alternative to Sendmail?

Microsoft SMTP Server
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.
13 Microsoft SMTP Server alternatives
License model
- Paid • Proprietary
Platforms
- Windows
Microsoft SMTP Server Features
Exchange
Email Forwarding
SMTP Support
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+9
Microsoft SMTP Server VS Sendmail
Is this a good alternative to Sendmail?

Sanwhole Exchange
Sanwhole Exchange is a server running iMail, iPress and iStore services. iMail is an enterprise-class email server does Microsoft Exchange and Gmail work. iPress sets blog, forums and tickets in one. iStore is an online store.
43 Sanwhole Exchange alternatives
License model
- Paid • Proprietary
Application type
- Mail Server
Platforms
- Windows
Sanwhole Exchange VS Sendmail
Is Sanwhole Exchange a good alternative to Sendmail?

BulkMTA
BulkMTA is Commercial Mail Server Similar to PowerMTA. IP Rotation, DKIM, Sender / Receiver Rate limiting.
6 BulkMTA alternatives
License model
- Paid • Proprietary
Application type
- Mail Server
Platforms
- Mac
- Windows
- Linux
BulkMTA VS Sendmail
Is BulkMTA a good alternative to Sendmail?

Hectane
An SMTP client that is extremely easy to configure and use, providing a simple HTTP API that is used for sending emails.
6 Hectane alternatives
License model
- Free • Proprietary
Platforms
- Windows
- Linux
Hectane Features
SMTP Support
Show all NaN Hectane features ▾
Hectane VS Sendmail
Is Hectane a good alternative to Sendmail?

MailerQ
MailerQ is a high performance Mail Transfer Agent (MTA) and a very fast SMTP server, designed to deliver large volumes of email messages at very high speeds. MailerQ is based on RabbitMQ AMQP.
7 MailerQ alternatives
License model
- Paid • Proprietary
Platforms
- Linux
MailerQ Features
Management Console
Response patterns
Client Support
Show all NaN MailerQ features ▾
MailerQ VS Sendmail
Is MailerQ a good alternative to Sendmail?

Halon
Halon is a global leader in email infrastructure, empowering large senders and mailbox providers to maximize email. Founded in 2010, Halon's solutions process billions of emails daily worldwide.
6 Halon alternatives
License model
- Paid • Proprietary
Application type
- Mail Server
Platforms
- Linux
- BSD
- Self-Hosted
- Amazon Web Services
- Microsoft Azure
- Google Cloud Platform
- Docker
- Kubernetes
Halon Features
Email api
SMTP Support
Show all NaN Halon features ▾
Halon VS Sendmail
Is Halon a good alternative to Sendmail?

Haraka
Haraka is an open source SMTP server written in Node.js which provides extremely high performance coupled with a flexible plugin system allowing Javascript programmers full access to change the behaviour of the server.
6 Haraka alternatives
License model
- Free • Open Source
Platforms
- Self-Hosted
- Node.JS
Haraka Features
Support for Javascript
Show all NaN Haraka features ▾
Haraka VS Sendmail
Is Haraka a good alternative to Sendmail?

NikaMail
NikaMail is a portable, extendable, zero-config email server. It is designed to perform automation tasks, provide access to mailboxes (port 110), serve as a mail transfer agent (port 587) and mail exchange service (port 25). NikaMail supports TLS.
13 NikaMail alternatives
License model
- Free • Open Source
Application type
- Mail Server
Platforms
- Mac
- Linux
NikaMail Features
POP3 Support
Exchange email
Show all NaN NikaMail features ▾
+1
NikaMail VS Sendmail
Is NikaMail a good alternative to Sendmail?

ArgoSoft Mail Server
Powerful and simple SMTP/POP3/Finger server, with built in Web interface for accessing mail via Web browser. Supports security features, such as SMTP authentication. Has built-in TZO client for users without static IP address. Version 1.8.8.
6 ArgoSoft Mail Server alternatives
License model
- Freemium • Proprietary
Application type
- Mail Server
Platforms
- Linux
ArgoSoft Mail Server VS Sendmail
Is ArgoSoft Mail Server a good alternative to Sendmail?