mailx

-B

-b bcc

-c cc

-d

-e

Test for the existence of mail without printing it. Exit status is 0 if mail exists; otherwise 1.

-f [file]

Read mail in alternate file (default is mbox).

-F

-h n

-H

-i

-I

Use with -f when displaying saved news articles; newsgroup and article-ID headers are included.

-n

Do not read the system startup mailx.rc or Mail.rc file(s).

-N

-r address

-s sub

-t

-T file

Record message IDs and article IDs (of news articles) in file.

-u user

Read user's mail.

-U

-v

-V

-~