A MTA is an application responsible for sending and receiving emails from one host to another.

 

Below are the various, well-known methods of sending an email with an attachment from the terminal.

 

1. Using mail Command

 

mail is part of the mailutils (On Debian) and mailx (On RedHat) package and it is used to process messages on the command line.

$ sudo apt-get install mailutils
# yum install mailx

 

Now its time to send an email attachment using mail command a shown.

$ echo "Message Body Here" | mail -s "Subject Here" user@example.com -A backup.zip

 

In the above command, the flag:

-s – specifies the message subject.

-A – helps to attach a file.

 

You can as well send an existing message from a file as follows:

$ mail -s "Subject here" -t user@example.com -A backup.zip < message.txt

 

2. Using mutt Command

 

mutt is a popular, lightweight command line email client for Linux.

 

If you do not have it on your system, type the command below to install it:

$ sudo apt-get install mutt
# yum install mutt

 

You can send an email with attachment using the mutt command below.

$ echo "Message Body Here" | mutt -s "Subject Here" -a backup.zip user@example.com

 

where the option:

 

-s – indicates the message subject.

-a – identifies the attachment(s).

 

3. Using mailx Command

 

mailx works more like the mutt command and it it also a part of mailutils (On Debian) package.

$ sudo apt-get install mailutils
# yum install mailx

 

Now send the attachment mail from the command-line using mailx command.

$ echo "Message Body Here" | mailx -s "Subject Here" -a backup.zip user@example.com

 

4. Using mpack Command

 

mpack encodes the named file in one or more MIME messages and sends the message to one or more recipients, or writes it to a named file or set of files, or posts it to a set of newsgroups.

$ sudo apt-get install mpack
# yum install mpack

 

To send a message with attachment, run the command below.

$ mpack -s "Subject here" file user@example.com

 

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