---
name: "qpsmtpd-forkserver"
section: "8"
platform: "linux"
package: "qpsmtpd"
version: "0.94-8"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/qpsmtpd-forkserver"
---

# qpsmtpd-forkserver(8)

Fork-on-demand server for qpsmtpd

## NAME

qpsmtpd-forkserver - Fork-on-demand server for qpsmtpd

## SYNOPSIS

**qpsmtpd-forkserver** \[*options*\]

## DESCRIPTION

**qpsmtpd-forkserver** is the qpsmtpd frontend script which binds to the SMTP TCP socket and forks as clients connect.

## OPTIONS

- **--port *port*, -p *port***

  Binds to a specific *port*, instead of the default 2525.

- **--user *user*, -u *user***

  On startup, switch to run as *user* instead of the starting user.  Applies only when started as root (as is normal when listening on port 25).

- **--limit-connections *limit*, -c *limit***

  Accept at most *limit* simultaneous connections.  Inbound connections beyondthis limit will be deferred or refused.

- **--max-from-ip *limit*, -m *limit***

  Accept at most *limit* simultaneous connections from any given IP address; does not override **--limit-connections**, if set.

- **--listen-address *addr*, -l *addr***

  Bind to the local address *addr*, instead of the default behavior of binding to all interfaces.  Can be specified multiple times to bind to more than one interface or local address.

- **--detach, -d**

  Detach from the controlling terminal at startup, to run as a standalone daemon.  See also **--pid-file**.

- **--pid-file *filename***

  Upon startup, and after daemonizing if applicable, write the process ID to *filename*, for use by sysvinit control scripts or similar utilities.

## AUTHOR

Ask Bjorn Hansen \<ask@develooper.com\>\
 http://smtpd.develooper.com/