Send email from command line - Revision history

Ractive at 20:15, 4 February 2023

2023-02-04T20:15:07Z

← Older revision		Revision as of 20:15, 4 February 2023
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	https://medium.com/swlh/setting-up-gmail-and-other-email-on-a-raspberry-pi-6f7e3ad3d0e		https://medium.com/swlh/setting-up-gmail-and-other-email-on-a-raspberry-pi-6f7e3ad3d0e

			this one is best... setup the aliases!!

Ractive at 19:15, 4 February 2023

2023-02-04T19:15:12Z

← Older revision		Revision as of 19:15, 4 February 2023
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	https://www.howtoraspberry.com/2021/06/how-to-send-mail-from-a-raspberry-pi/		https://www.howtoraspberry.com/2021/06/how-to-send-mail-from-a-raspberry-pi/

			neither of those work well

			trying this:

			https://medium.com/swlh/setting-up-gmail-and-other-email-on-a-raspberry-pi-6f7e3ad3d0e

Ractive at 21:42, 13 August 2022

2022-08-13T21:42:11Z

← Older revision		Revision as of 21:42, 13 August 2022
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	use this: https://coding-engineer.com/2021/07/16/sending-email-from-raspberry-pi/		use this: https://coding-engineer.com/2021/07/16/sending-email-from-raspberry-pi/

			https://www.howtoraspberry.com/2021/06/how-to-send-mail-from-a-raspberry-pi/

Ractive: Replaced content with "ssmpt is depracated use this: https://coding-engineer.com/2021/07/16/sending-email-from-raspberry-pi/"

2022-08-13T21:16:18Z

Replaced content with "ssmpt is depracated use this: https://coding-engineer.com/2021/07/16/sending-email-from-raspberry-pi/"

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Ractive at 00:00, 6 December 2021

2021-12-06T00:00:49Z

← Older revision		Revision as of 00:00, 6 December 2021
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	Select “Security” from the list on the left.		Select “Security” from the list on the left.
	Screenshot of Google account security options		Screenshot of Google account security options
	Manage your application passwords		[[File:1 oRO pdvixg77ItieXkpyAg.webp\|thumb\|Manage your application passwords]]


	Note that I have two-step verification turned on. You might or might not; either way, creating an application password for each application is a good idea. If you lose a device or it is stolen, you can revoke the application password and not have to change your existing password or passwords for other applications.		Note that I have two-step verification turned on. You might or might not; either way, creating an application password for each application is a good idea. If you lose a device or it is stolen, you can revoke the application password and not have to change your existing password or passwords for other applications.

	There should be a box for “Signing in to Google” that contains an option for “App passwords.” Click on that. You might have to sign in again at this point (I did). This should take you to the page to manage application passwords. The example account I am using doesn’t have any.		There should be a box for “Signing in to Google” that contains an option for “App passwords.” Click on that. You might have to sign in again at this point (I did). This should take you to the page to manage application passwords. The example account I am using doesn’t have any.
	Screenshot of app password manager		[[File:1 wOJXexgbCv26tK61Y6HivQ.webp\|thumb\|Screenshot of app password manager]]

	Create a new application password		Create a new application password

	Now click on “Select app” and select Mail. Then click on “Select device” and select Other. You’ll need to enter the name of the device (for this example it is raspberrypi4). Click Generate to create the application password.		Now click on “Select app” and select Mail. Then click on “Select device” and select Other. You’ll need to enter the name of the device (for this example it is raspberrypi4). Click Generate to create the application password.
	Screenshot of new application password		[[File:1 brccd46k2jG7LByvHmYcKA.webp\|thumb\|Screenshot of new application password]]

	A new application password! Don’t get excited; I’ve already deleted it.		A new application password! Don’t get excited; I’ve already deleted it.

Ractive at 23:53, 5 December 2021

2021-12-05T23:53:55Z

← Older revision		Revision as of 23:53, 5 December 2021
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	During the installation, you will be asked about how the mail server should operate. You want an Internet Site, where email is sent and received directly using SMTP, so select that option.		During the installation, you will be asked about how the mail server should operate. You want an Internet Site, where email is sent and received directly using SMTP, so select that option.
	[[File:1 JfCiOBuECq ZkXnQnBEqjA.webp\|thumb\|So many choices]]		[[File:1 JfCiOBuECq ZkXnQnBEqjA.webp\|thumb\|So many choices]]
	~~So many choices~~

	Now you’ll be asked for the “system mail name.” You should use your hostname (raspberrypi, for instance) or, if you have a fully-qualified domain name for your network via your ISP or a service like DYN, then you can use that. Don’t stress over this; you can modify it later by editing the /etc/postfix/main.cf file if you need to.		Now you’ll be asked for the “system mail name.” You should use your hostname (raspberrypi, for instance) or, if you have a fully-qualified domain name for your network via your ISP or a service like DYN, then you can use that. Don’t stress over this; you can modify it later by editing the /etc/postfix/main.cf file if you need to.
	~~Screenshot of a package configuration dialog~~		[[File:1 q0q44eDDQQ5eG6iYezZp2Q.webp\|thumb\|Set The Server Name]]
	~~Set the server name~~
	2. Get an Application Password for Postfix from Google		2. Get an Application Password for Postfix from Google

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	To get an application password head to: https://myaccount.google.com and log in.		To get an application password head to: https://myaccount.google.com and log in.
	~~Screenshot of Google account options~~		[[File:1 xw9IqU41YRcNkYfiIHFuww.webp\|thumb\|Account Security Settings]]

	Account security settings		Account security settings

Ractive at 09:53, 3 December 2021

2021-12-03T09:53:20Z

← Older revision		Revision as of 09:53, 3 December 2021
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	During the installation, you will be asked about how the mail server should operate. You want an Internet Site, where email is sent and received directly using SMTP, so select that option.		During the installation, you will be asked about how the mail server should operate. You want an Internet Site, where email is sent and received directly using SMTP, so select that option.
	~~Screenshot of package configuration screen~~		[[File:1 JfCiOBuECq ZkXnQnBEqjA.webp\|thumb\|So many choices]]
	So many choices		So many choices

Ractive at 09:43, 3 December 2021

2021-12-03T09:43:23Z

Ractive at 09:39, 3 December 2021

2021-12-03T09:39:58Z

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Ractive: Created page with "https://www.brewpiremix.com/send-mail-from-your-raspberry-pi/"

2021-12-03T09:17:58Z

Created page with "https://www.brewpiremix.com/send-mail-from-your-raspberry-pi/"

New page

https://www.brewpiremix.com/send-mail-from-your-raspberry-pi/

← Older revision		Revision as of 09:43, 3 December 2021
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	Source=https://www.brewpiremix.com/send-mail-from-your-raspberry-pi/<br>		Source=https://www.brewpiremix.com/send-mail-from-your-raspberry-pi/<br>
	Send Mail from your Raspberry Pi		== Send Mail from your Raspberry Pi ==

	I have to go searching for how to do this every time. This time I thought I would memorialize the instructions. I found this in an article written by Stacy Prowell on Medium.com.		I have to go searching for how to do this every time. This time I thought I would memorialize the instructions. I found this in an article written by Stacy Prowell on Medium.com.
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	Run the following command at the prompt to install Postfix along with simple authentication layer security (SASL), which Postfix will use to connect to Gmail.		Run the following command at the prompt to install Postfix along with simple authentication layer security (SASL), which Postfix will use to connect to Gmail.

	sudo apt install postfix libsasl2-modules		sudo apt install postfix libsasl2-modules

	During the installation, you will be asked about how the mail server should operate. You want an Internet Site, where email is sent and received directly using SMTP, so select that option.		During the installation, you will be asked about how the mail server should operate. You want an Internet Site, where email is sent and received directly using SMTP, so select that option.
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	We are almost done. The next thing to do is to add the app password you just generated to the SASL configuration. Run the following command.		We are almost done. The next thing to do is to add the app password you just generated to the SASL configuration. Run the following command.

	sudo nano -B /etc/postfix/sasl/sasl_passwd		sudo nano -B /etc/postfix/sasl/sasl_passwd

	This command will open the file in an editor. It is likely the file does not exist, and you will see an empty file. Add the following line, replacing username and password with your Gmail username and the application password you just generated (don’t include the spaces).		This command will open the file in an editor. It is likely the file does not exist, and you will see an empty file. Add the following line, replacing username and password with your Gmail username and the application password you just generated (don’t include the spaces).

	[smtp.gmail.com]:587 username@gmail.com:password		[smtp.gmail.com]:587 username@gmail.com:password

	This line tells SASL that when it connects to the host smtp.gmail.com at port 587 to download mail, it should use the given username and password to connect. Exit and save with CTRL+x, y, and Enter.		This line tells SASL that when it connects to the host smtp.gmail.com at port 587 to download mail, it should use the given username and password to connect. Exit and save with CTRL+x, y, and Enter.
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	This file contains a “clear text” password. Run the following command to protect that file.		This file contains a “clear text” password. Run the following command to protect that file.

	sudo chmod u=rw,go= /etc/postfix/sasl/sasl_passwd		sudo chmod u=rw,go= /etc/postfix/sasl/sasl_passwd

	This command sets the user permissions (root) to read and write and removes any permissions for the group and others. (Fans of the numerical form of chmod will recognize this as 0600.)		This command sets the user permissions (root) to read and write and removes any permissions for the group and others. (Fans of the numerical form of chmod will recognize this as 0600.)
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	Now turn this file into a hash file for Postfix. Run the following command.		Now turn this file into a hash file for Postfix. Run the following command.

	sudo postmap /etc/postfix/sasl/sasl_passwd		sudo postmap /etc/postfix/sasl/sasl_passwd

	This command will create a new file named sasl_passwd.db in the same directory. It should already have the permissions set correctly, but just in case, let’s also explicitly set the permissions.		This command will create a new file named sasl_passwd.db in the same directory. It should already have the permissions set correctly, but just in case, let’s also explicitly set the permissions.

	sudo chmod u=rw,go= /etc/postfix/sasl/sasl_passwd.db		sudo chmod u=rw,go= /etc/postfix/sasl/sasl_passwd.db

	4. Configure Postfix		4. Configure Postfix
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	Now let’s finish up the configuration of Postfix. Run the following commands.		Now let’s finish up the configuration of Postfix. Run the following commands.

	sudo cp /etc/postfix/main.cf !#$.dist		sudo cp /etc/postfix/main.cf !#$.dist
	sudo nano /etc/postfix/main.cf
			sudo nano /etc/postfix/main.cf

	Find the line (near the bottom) that starts with relayhost =. Here is where we specify that we want to use Google’s SMTP server as our relay host, and this must match what we put in /etc/postfix/sasl/sasl_passwd. Change the line so it looks as follows.		Find the line (near the bottom) that starts with relayhost =. Here is where we specify that we want to use Google’s SMTP server as our relay host, and this must match what we put in /etc/postfix/sasl/sasl_passwd. Change the line so it looks as follows.

	relayhost = [smtp.gmail.com]:587		relayhost = [smtp.gmail.com]:587

	Next, add the following to the end of the file. (Documentation for these options and others can be found here.)		Next, add the following to the end of the file. (Documentation for these options and others can be found here.)

	# Enable authentication using SASL.		# Enable authentication using SASL.
	smtp_sasl_auth_enable = yes		smtp_sasl_auth_enable = yes
	# Use transport layer security (TLS) encryption.		# Use transport layer security (TLS) encryption.
	smtp_tls_security_level = encrypt		smtp_tls_security_level = encrypt
	# Do not allow anonymous authentication.		# Do not allow anonymous authentication.
	smtp_sasl_security_options = noanonymous		smtp_sasl_security_options = noanonymous
	# Specify where to find the login information.		# Specify where to find the login information.
	smtp_sasl_password_maps = hash:/etc/postfix/sasl/sasl_passwd		smtp_sasl_password_maps = hash:/etc/postfix/sasl/sasl_passwd
	# Where to find the certificate authority (CA) certificates.		# Where to find the certificate authority (CA) certificates.
	smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt		smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt

	Save and exit with CTRL+x, y, and Enter, and then restart Postfix with the following command.		Save and exit with CTRL+x, y, and Enter, and then restart Postfix with the following command.

	sudo systemctl restart postfix		sudo systemctl restart postfix

	5. Testing Email		5. Testing Email
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	Next, let’s verify that we can send an email via Google’s SMTP server. Type the following at the command line, replacing username with your Gmail user name (so the email goes to you).		Next, let’s verify that we can send an email via Google’s SMTP server. Type the following at the command line, replacing username with your Gmail user name (so the email goes to you).

	sendmail username@gmail.com		sendmail username@gmail.com
	Subject: It works!		Subject: It works!
	Hey, it works!		Hey, it works!
	.		.

	The first line uses the sendmail command to send an email to the specified recipients (you can list more than one). The subsequent lines optionally specify mail headers like the subject, and then the body of the email. The entire thing is terminated by a period. Note that this is just one way to send email using the sendmail command. Later we will use sendmail to send the output of commands.		The first line uses the sendmail command to send an email to the specified recipients (you can list more than one). The subsequent lines optionally specify mail headers like the subject, and then the body of the email. The entire thing is terminated by a period. Note that this is just one way to send email using the sendmail command. Later we will use sendmail to send the output of commands.
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	For example, perhaps you want email to the pi user to go to your Gmail account. You would run the following command to edit the aliases file.		For example, perhaps you want email to the pi user to go to your Gmail account. You would run the following command to edit the aliases file.

	sudo nano -R /etc/aliases		sudo nano -R /etc/aliases

	Next, you would add the following line, where username is your Gmail username.		Next, you would add the following line, where username is your Gmail username.

	pi: username@gmail.com		pi: username@gmail.com

	Finally, tell the system about the new mail aliases by running the following command.		Finally, tell the system about the new mail aliases by running the following command.

	sudo newaliases		sudo newaliases

	Now mail sent to pi will be forwarded along by Postfix to your Gmail account.		Now mail sent to pi will be forwarded along by Postfix to your Gmail account.
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	Note that if you are getting your hopes up on automatically processing the replies, you should be careful. The reply above was sent as a base 64 encoded rich text file. That is, you may have to do some work if you want true two-way communication.		Note that if you are getting your hopes up on automatically processing the replies, you should be careful. The reply above was sent as a base 64 encoded rich text file. That is, you may have to do some work if you want true two-way communication.

			===Using the mail command from command line===
			sudo apt install mailutils

			echo "<Mail Body" \| mail -s "<Subject>" <receiver@domain>