How to Relay Emails to Gmail - Revision history

Jgutierrez6 at 20:13, 21 October 2025

2025-10-21T20:13:51Z

← Older revision		Revision as of 20:13, 21 October 2025
Line 5:		Line 5:
	*vav.combpio.ucsf.edu		*vav.combpio.ucsf.edu
	*bksmailman.compbio.ucsf.edu		*bksmailman.compbio.ucsf.edu
			*epyc
			*epyc2

	Relaying emails through gmail will make it more secure and trustworthy.		Relaying emails through gmail will make it more secure and trustworthy.

Jgutierrez6 at 22:43, 1 September 2022

2022-09-01T22:43:20Z

← Older revision		Revision as of 22:43, 1 September 2022
Line 10:		Line 10:
	== Instructions ==		== Instructions ==
	'''[https://www.golinuxcloud.com/gmail-smtp-relay-server-postfix/#Error-1_SASL_authentication_failure_No_worthy_mechs_found Reference Tutorial]'''		'''[https://www.golinuxcloud.com/gmail-smtp-relay-server-postfix/#Error-1_SASL_authentication_failure_No_worthy_mechs_found Reference Tutorial]'''

	~~#* <source>~~

	~~</source>~~

	# Create a gmail account OR Ask Khanh for docking.email@gmail.com for credentials.		# Create a gmail account OR Ask Khanh for docking.email@gmail.com for credentials.

Jgutierrez6 at 22:41, 1 September 2022

2022-09-01T22:41:11Z

← Older revision		Revision as of 22:41, 1 September 2022
Line 59:		Line 59:
	#* Click 'Other' for the category input		#* Click 'Other' for the category input
	#* Copy the generated token and save somewhere		#* Copy the generated token and save somewhere
			# Once you have token, replace <gmail_app_password> in sasl_passwd file with the token and save the file
			# Update the password database
			#* <source>
			postmap /etc/postfix/sasl_passwd
			chown root:root /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
			chmod 0600 /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
			systemctl restart postfix.service
			systemctl status postfix
			</source>
			# Verify that it works
			#* <source>
			echo "This is the body of the email" \| mail -s "This is the subject line" <your_email>
			</source>
			# If it works you're done. If it doesn't check the reference tutorial for troubleshooting.

Jgutierrez6 at 22:31, 1 September 2022

2022-09-01T22:31:37Z

@@ Line 47: / Line 47: @@
 //Paste this line and replace
-[smtp.gmail.com]:587 docking.email@gmail.com:
+[smtp.gmail.com]:587 docking.email@gmail.com:<gmail_app_password>
 </source>

Jgutierrez6 at 22:23, 1 September 2022

2022-09-01T22:23:45Z

← Older revision		Revision as of 22:23, 1 September 2022
Line 41:		Line 41:
	smtp_tls_security_level = encrypt		smtp_tls_security_level = encrypt
	smtp_tls_CAfile = /etc/ssl/certs/ca-bundle.crt		smtp_tls_CAfile = /etc/ssl/certs/ca-bundle.crt
			</source>
			# Set up authentication file for gmail
			#* <source>
			vim /etc/postfix/sasl_passwd

			//Paste this line and replace
			[smtp.gmail.com]:587 docking.email@gmail.com:
	</source>		</source>

Jgutierrez6 at 20:07, 1 September 2022

2022-09-01T20:07:18Z

← Older revision		Revision as of 20:07, 1 September 2022
Line 31:		Line 31:
	# Configure Postfix		# Configure Postfix
	#* <source>		#* <source>
			vim /etc/postfix/main.cf

			//Copy these lines and paste it at the bottom of the main.cf file
			relayhost = [smtp.gmail.com]:587
			smtp_use_tls = yes
			smtp_sasl_auth_enable = yes
			smtp_sasl_security_options = noanonymous
			smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
			smtp_tls_security_level = encrypt
			smtp_tls_CAfile = /etc/ssl/certs/ca-bundle.crt
	</source>		</source>

Jgutierrez6 at 19:56, 1 September 2022

2022-09-01T19:56:01Z

← Older revision		Revision as of 19:56, 1 September 2022
Line 10:		Line 10:
	== Instructions ==		== Instructions ==
	'''[https://www.golinuxcloud.com/gmail-smtp-relay-server-postfix/#Error-1_SASL_authentication_failure_No_worthy_mechs_found Reference Tutorial]'''		'''[https://www.golinuxcloud.com/gmail-smtp-relay-server-postfix/#Error-1_SASL_authentication_failure_No_worthy_mechs_found Reference Tutorial]'''

			#* <source>

			</source>

	# Create a gmail account OR Ask Khanh for docking.email@gmail.com for credentials.		# Create a gmail account OR Ask Khanh for docking.email@gmail.com for credentials.
Line 24:		Line 28:
	#* <source>		#* <source>
	yum install postfix mailx cyrus-sasl cyrus-sasl-plain -y		yum install postfix mailx cyrus-sasl cyrus-sasl-plain -y
			</source>
			# Configure Postfix
			#* <source>

	</source>		</source>

Jgutierrez6 at 19:44, 1 September 2022

2022-09-01T19:44:14Z

@@ Line 16: / Line 16: @@
 rpm -q sendmail (Check for package)
 systemctl disbale sendmail --now (Disable package)
 </source>

Jgutierrez6: Created page with "== Introduction == This tutorial applies to RHEL 8 based operating systems (CentOS, Rocky Linux) Two machines that send emails are: vav.combpio.ucsf.edu bksmailman.compbio...."

2022-09-01T19:39:55Z

Created page with "== Introduction == This tutorial applies to RHEL 8 based operating systems (CentOS, Rocky Linux) Two machines that send emails are: *vav.combpio.ucsf.edu *bksmailman.compbio...."

New page

== Introduction ==
This tutorial applies to RHEL 8 based operating systems (CentOS, Rocky Linux)

Two machines that send emails are:
*vav.combpio.ucsf.edu
*bksmailman.compbio.ucsf.edu

Relaying emails through gmail will make it more secure and trustworthy.

== Instructions ==
'''[https://www.golinuxcloud.com/gmail-smtp-relay-server-postfix/#Error-1_SASL_authentication_failure_No_worthy_mechs_found Reference Tutorial]'''

# Create a gmail account OR Ask Khanh for docking.email@gmail.com for credentials.
# Disable pre-installed 'sendmail' package
#* <source>
rpm -q sendmail (Check for package)
systemctl disbale sendmail --now (Disable package)
</source>