Sendmail AlternativesOnly apps categorised as Email Clients

The best Email Client alternative to Sendmail is CrossBox. If that doesn't work for you, our users have ranked more than 25 alternatives to Sendmail, but unfortunately only two of them are Email Clients.

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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

CrossBox
Real-time email, chat, audio/video calls & conferences, file-sharing, and contacts app with a modern and intuitive UI.
39 CrossBox alternatives
License model
- Paid • Proprietary
Application types
- Mail Server
- WebMail Provider
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Self-Hosted
CrossBox Features
File Hosting
Show all NaN CrossBox features ▾
+9
CrossBox VS Sendmail
Is CrossBox a good alternative to Sendmail?
- CrossBox is the most popular Android, iPhone, iPad & Android Tablet alternative to Sendmail.
- CrossBox is Paid and ProprietarySendmail is Free and Open Source

Atmail Email Server
Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows.
68 Atmail Email Server alternatives
License model
- Paid • Proprietary
Application types
- Email Client
- WebMail Provider
Platforms
- Linux
- Online
Atmail Email Server Features
Group Mail
Show all NaN Atmail Email Server features ▾
Atmail Email Server VS Sendmail
Is Atmail Email Server a good alternative to Sendmail?