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)' and is an app in the Online Services category. There are more than 25 alternatives to Sendmail for a variety of platforms, including Linux, Self-Hosted solutions, Windows, Mac and BSD. The best alternative is Postfix, which is both free and Open Source. Other great apps like Sendmail are Zentyal (Paid, Open Source), Zimbra Collaboration Suite (Freemium, Open Source), Mail-in-a-box (Free, Open Source) and OpenSMTPD (Free, Open Source).
- Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. View 42 alternatives to Zimbra Collaboration Suite
- Freemium • Open Source
- sSMTP is a simple MTA to deliver mail from a computer to a mail server. sSMTP is simple and lightweight, there are no daemons or anything hogging up CPU; Just sSMTP. Unlike Exim4, sSMTP does not receive mail, expand aliases, or manage a queue. View 19 alternatives to sSMTPNo screenshots yet
- Free • Open Source
- 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. View 42 alternatives to iMail
- Paid • Proprietary