---
name: "mailto.conf"
section: "5"
platform: "linux"
package: "cups"
version: "2:2.4.20-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux", "macos"]
url: "https://new.carta.tech/mailto.conf"
---

# mailto.conf(5)

configuration file for cups email notifier

## NAME

mailto.conf - configuration file for cups email notifier

## DESCRIPTION

The **mailto.conf** file defines the local mail server and email notification preferences for CUPS.

Each line in the file can be a configuration directive, a blank line, or a comment. Configuration directives typically consist of a name and zero or more values separated by whitespace. The configuration directive name and values are case-insensitive. Comment lines start with the # character.

### DIRECTIVES

- **Cc** *cc-address@domain.com*

  Specifies an additional recipient for all email notifications.

- **From** *from-address@domain.com*

  Specifies the sender of email notifications.

- **Sendmail** *sendmail command and options*

  Specifies the sendmail command to use when sending email notifications. Only one *Sendmail* or *SMTPServer* line may be present in the **mailto.conf** file. If multiple lines are present, only the last one is used.

- **SMTPServer** *servername*

  Specifies a SMTP server to send email notifications to. Only one *Sendmail* or *SMTPServer* line may be present in the **mailto.conf** file. If multiple lines are present, only the last one is used.

- **Subject** *subject-prefix*

  Specifies a prefix string for the subject line of an email notification.

## SEE ALSO

[**cupsd**(8)](/cupsd/8.md), CUPS Online Help (http://localhost:631/help)

## COPYRIGHT

Copyright © 2020-2024 by OpenPrinting.