Freedom251 › Mail Server Software
qmail
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| qmail | Latest published package listed: qmail-1.03.tar.gz | Free |
As cr.yp.to lists them, read 9 Oct 2026. The maker's own page has the final word.
Facts from qmail's own pages
- Compatibility
- qmail includes a sendmail-compatible wrapper and supports .forward and /etc/aliases through separately available tools. · cr.yp.to, 9 Oct 2026
- Dependencies
- Some listed capabilities, including parallelism limits, RBL support, and mailing-list subscription management, use separately available tools or packages. · cr.yp.to, 9 Oct 2026
- Designed for
- The maker describes qmail as designed for typical Internet-connected UNIX hosts. · cr.yp.to, 9 Oct 2026
- Distribution terms
- The maker places the qmail package in the public domain and says it may be modified and redistributed. · cr.yp.to, 9 Oct 2026
- Download
- The maker lists qmail-1.03.tar.gz as the latest published qmail package. · cr.yp.to, 9 Oct 2026
- License
- The maker places the qmail package, specifically qmail-1.03.tar.gz, in the public domain and permits modification and redistribution. · cr.yp.to, 9 Oct 2026
- Mailboxes
- qmail optionally supports Maildir, which the maker describes as resistant to corruption during delivery if the system crashes. · cr.yp.to, 9 Oct 2026
- Mailbox format
- qmail optionally supports maildir, which the maker describes as resistant to corruption if a system crashes during delivery. · cr.yp.to, 9 Oct 2026
- Mail delivery
- The maker says qmail queues messages and writes local deliveries to disk before reporting success. · cr.yp.to, 9 Oct 2026
- Mail handling
- The maker lists virtual domains, relay control, host and user masquerading, and independent message retry schedules among qmail's capabilities. · cr.yp.to, 9 Oct 2026
- Mailing lists
- qmail supports user-managed mailing lists, VERPs for bounce handling, and automatic loop prevention, including across hosts. · cr.yp.to, 9 Oct 2026
- Protocols
- The package includes a POP3 service with UIDL and TOP support, and its 1.03 changes added QMQP client and server support. · cr.yp.to, 9 Oct 2026
- Purpose
- qmail is a secure, reliable, efficient message transfer agent for typical Internet-connected UNIX hosts. · cr.yp.to, 9 Oct 2026
- Related software
- The maker recommends djbdns for use with qmail and lists ezmlm, ucspi-tcp, serialmail, and other related packages. · cr.yp.to, 9 Oct 2026
- Reliability
- The maker says qmail is designed so a message accepted into the system will not be lost. · cr.yp.to, 9 Oct 2026
- Security design
- The maker lists separation between addresses, files, and programs; reduced setuid and root code; and five-way trust partitioning as security features. · cr.yp.to, 9 Oct 2026
- Sendmail compatibility
- qmail includes a sendmail wrapper intended to let it be used transparently by existing user agents. · cr.yp.to, 9 Oct 2026
- SMTP
- qmail-smtpd supports relay controls, 8-bit messages, and SMTP extensions listed on the maker’s feature page. · cr.yp.to, 9 Oct 2026
- Support
- The FAQ includes troubleshooting and asks whether commercial support is available, but the opened FAQ index does not state a support offering. · cr.yp.to, 9 Oct 2026
- Supported systems
- The maker lists AIX, BSD/OS, FreeBSD, HP/UX, Irix, Linux, OSF/1, SunOS, and Solaris, among other UNIX variants. · cr.yp.to, 9 Oct 2026
- Windows limit
- The FAQ says qmail does not support Windows NT. · cr.yp.to, 9 Oct 2026
Where qmail stands on Freedom251
- Mail Server Software#23 of 34