GNU Mailutils

mailutils

A suite of mail-related utilities

Runs as mail, mailutils, frm, sieve|macOS, Linux, Windows|mailutils.org

Open form in Otty otty.toml

Command form

ai-draft · 1 task · 5 fields

Compose and send a message with GNU mail to one or more recipients; the body is read from standard input or typed. Mailbox reading, attachments' MIME options and configuration switches are left out.

Opens the form; the finished command lands at your prompt, unrun

Run in Otty

otty gui mailutils

Send mailExample values, fixed in this page — nothing here reaches a terminal

Basic

Recipients*

string

Subject

string

Attachments

file

TasksEach one presets the form for one job

Send a message

tosubjectattach

ParametersOnly these flags are editable in the form

Recipients

string · positional 0 · repeatable

Subject

string

--subject-s

Attachments

path · repeatable

--attach-A

Return address

string

--return-address-r

Ignore ~/.mailrc

boolean

--norc-n

SourcesEvery flag above is checked against these

man

mail.mailutils [OPTION...] [address...] -A, --attach=FILE attach FILE -a, --append=HEADER: VALUE append given header to the message being sent -r, --return-address=ADDRESS use address as the return address when sending mail -s, --subject=SUBJ send a message with the given SUBJECT -n, --norc

manualunstable 2026-10-27

manpages.debian.org

Before it fills your prompt, Otty checks the installed mail against its version. A form that does not match your version is not offered.