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--- lwc:linux:setup [2021/09/22 14:36] – [Postfix email relay with AWS SES on Linode Ubuntu 20.04] John Harrison
+++ lwc:linux:setup [2021/10/19 20:06] (current) – John Harrison
@@ Line 15: / Line 15: @@
     * add public rsa
   * logout, login to test that cert is working
-  * ''sudo emacs -nw /etc/ssh/sshd_conf'' and change ''PasswordAuthentication'' from ''yes'' to ''no''
+  * ''sudo emacs -nw /etc/ssh/sshd_config'' and change ''PasswordAuthentication'' from ''yes'' to ''no''
   * ''sudo systemctl restart sshd.service''
-  * copy ''.emacs'' and ''.emacs/d'' from somewhere else...
+  * in home directory <code>git clone https://whyameye@bitbucket.org/whyameye/.emacs.d.git</code>
-==== Postfix email relay with AWS SES on Linode Ubuntu 20.04 ====
-(based off of [[https://docs.aws.amazon.com/ses/latest/DeveloperGuide/postfix.html|these directions]]):
-<code>
-sudo apt install -y postfix
-sudo cp /usr/share/postfix/main.cf.debian /etc/postfix/main.cf
-sudo postconf -e "relayhost = [email-smtp.us-west-2.amazonaws.com]:2587" "smtp_sasl_auth_enable = yes" "smtp_sasl_security_options = noanonymous" "smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd" "smtp_use_tls = yes" "smtp_tls_security_level = encrypt" "smtp_tls_note_starttls_offer = yes"
-sudo sh -c 'echo [email-smtp.us-west-2.amazonaws.com]:2587 AWSUSER:AWSPASS > /etc/postfix/sasl_passwd'
-sudo postmap hash:/etc/postfix/sasl_passwd
-sudo chown root:root /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
-sudo chmod 0600 /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
-sudo postconf -e 'smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt'
-sudo cp /etc/resolv.conf /var/spool/postfix/etc/resolv.conf # getting hostname unresolved without this. A bug in 14.04 that remains?
-sed -e '0/^smtp/s/^/#/' -i /etc/postfix/master.cf # shut down smtp incoming
-sudo sh -c 'echo inet_interfaces = loopback-only >> /etc/postfix/main.cf' # smtp accepted only internally (redundant?)
-sudo postfix stop; sudo postfix start; sudo postfix reload
-</code>
-=== Force the From address in Postfix ===
-from [[https://serverfault.com/questions/147921/forcing-the-from-address-when-postfix-relays-over-smtp|these directions]] execute as root:
-<code>
-echo "sender_canonical_classes = envelope_sender, header_sender" >> /etc/postfix/main.cf
-echo "sender_canonical_maps =  regexp:/etc/postfix/sender_canonical_maps" >> /etc/postfix/main.cf
-echo "smtp_header_checks = regexp:/etc/postfix/header_check" >> /etc/postfix/main.cf
-echo "/.+/    NEWSENDER@ADDR.COM" > /etc/postfix/sender_canonical_maps
-echo "/From:.*/ REPLACE From: NEWSENDER@ADDR.COM" >/etc/postfix/header_check
-sudo postfix stop; sudo postfix start; sudo postfix reload
-</code>
-=== test ===
-<code>
-sendmail -f sender@example.com recipient@example.com # -f allows you to specify from and is not required
-From: Sender Name <sender@example.com>
-Subject: Amazon SES Test
-This message was sent using Amazon SES.
-.
-</code>
-=== Tips ===
-  * postfix should be set up with no configuration. When you do this, there are instructions given at the end to copy some sort of sample configuration.
-  * to reconfigure: ''sudo dpkg-reconfigure postfix''
-  * to reload the settings: ''sudo postfix stop; sudo postfix start; sudo postfix reload''
-  * when testing ''tail -f /var/log/mail.log'' is your friend
 ==== Optional ====
-  * set hostname with ''hostnamectl set-hostname <HOSTNAME>''
+  * consider [[lwc:linux:postfix|setting up a postfix smtp relay]]