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#Wireshark ubuntu smtp sendmail how to#
#Wireshark ubuntu smtp sendmail install#
#Wireshark ubuntu smtp sendmail password#

To verify that the setup actually works, try to send a test mail using sendmail. etc/init.d/sendmail reload Testing Sendmail Gmail Relay ** ** You should issue `/etc/init.d/sendmail reload` ** **Īfter rebuilding Sendmail configuration, reload Sendmail. etc/mail/relay-domains /etc/mail/sendmail.cf Save the configuration file above and re-build Sendmail configuration. TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnlĭefine(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnlįEATURE(`authinfo',`hash -o /etc/mail/authinfo/gmail-smtp-auth.db')dnl ĭnl # Defining Gmail Smarthost for sendmailĭefine(`SMART_HOST',`')dnlĭefine(`RELAY_MAILER_ARGS', `TCP $h 587')dnlĭefine(`ESMTP_MAILER_ARGS', `TCP $h 587')dnl Replace it with your Gmail Authentication sendmail database map you generated above. Note the line FEATURE( authinfo',hash -o /etc/mail/authinfo/gmail-smtp-auth.db')dnl If you need to create a comment, begin a line with dnl. The definition should made in /etc/mail/sendmail.mc configuration file JUST BEFORE the MAILER definition. This can be defined using SMART_HOST macro. Configure Sendmail Smart HostĪ smart host/smarthost is used to specify an SMTP server that relays emails, in this case,. This will create authentication database, /etc/mail/authinfo/gmail-smtp-auth.db. You can use the makemap utility as shown below makemap hash /etc/mail/authinfo/gmail-smtp-auth < /etc/mail/authinfo/gmail-smtp-auth Next, you need to generate the Sendmail gmail authentication databas map from the above authentication information.

#Wireshark ubuntu smtp sendmail password#

See how you can use App password as an alternative in the guide below Ĭonfigure Postfix to Use Gmail App Passwords Create Sendmail-Gmail Authentication Database Map NOTE that the use of less secure app access has been deprecated. Replace USER ID and GMAIL_USER_PASSWORD with your Gmail account user ID and password respectively.

P: The clear text for the authentication user used to authorize the mail connections.

I (The authentication Identifier): Name of the user allowed to setup a connection.

U (The user (authorization) identifier): defines the name of the user that sendmail will use to check allowable permissions.

The file should define Gmail authentication information should contain the line below AuthInfo: "U:root" "I: " "P:GMAIL_USER_PASSWORD" Next, create a file to store Gmail authentication details under the directory created above. Hence, create a directory as shown below mkdir -m 700 /etc/mail/authinfo

#Wireshark ubuntu smtp sendmail how to#

Next, you need to create a directory to store a file that defines how to connect to Gmail SMTP server for mail relay.

#Wireshark ubuntu smtp sendmail install#

Apt install sendmail sendmail-bin mailutils Define Gmail Authentication Details