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On the recordRead 9 Oct 202621 facts
qmail
Plans and prices
qmail
Free
Latest published package listed: qmail-1.03.tar.gz
Read 9 Oct 2026 · cr.yp.to
On the record
- Compatibility
- qmail includes a sendmail-compatible wrapper and supports .forward and /etc/aliases through separately available tools.cr.yp.to · read 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 · read 9 Oct 2026
- Designed for
- The maker describes qmail as designed for typical Internet-connected UNIX hosts.cr.yp.to · read 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 · read 9 Oct 2026
- Download
- The maker lists qmail-1.03.tar.gz as the latest published qmail package.cr.yp.to · read 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 · read 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 · read 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 · read 9 Oct 2026
- Mail delivery
- The maker says qmail queues messages and writes local deliveries to disk before reporting success.cr.yp.to · read 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 · read 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 · read 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 · read 9 Oct 2026
- Purpose
- qmail is a secure, reliable, efficient message transfer agent for typical Internet-connected UNIX hosts.cr.yp.to · read 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 · read 9 Oct 2026
- Reliability
- The maker says qmail is designed so a message accepted into the system will not be lost.cr.yp.to · read 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 · read 9 Oct 2026
- Sendmail compatibility
- qmail includes a sendmail wrapper intended to let it be used transparently by existing user agents.cr.yp.to · read 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 · read 9 Oct 2026
