Skip to content

Remove sensitive information from email headers #14

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Remove sensitive information from email headers #14

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 12 additions & 2 deletions ServerSetup.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -213,8 +213,8 @@ install_postfix_dovecot() {
biff = no
append_dot_mydomain = no
readme_directory = no
smtpd_tls_cert_file=/etc/letsencrypt/live/${primary_domain}/fullchain.pem
smtpd_tls_key_file=/etc/letsencrypt/live/${primary_domain}/privkey.pem
smtpd_tls_cert_file = /etc/letsencrypt/live/${primary_domain}/fullchain.pem
smtpd_tls_key_file = /etc/letsencrypt/live/${primary_domain}/privkey.pem
smtpd_tls_security_level = may
smtp_tls_security_level = encrypt
smtpd_tls_session_cache_database = btree:\${data_directory}/smtpd_scache
Expand All @@ -236,6 +236,16 @@ install_postfix_dovecot() {
milter_protocol = 6
smtpd_milters = inet:12301,inet:localhost:54321
non_smtpd_milters = inet:12301,inet:localhost:54321
mime_header_checks = regexp:/etc/postfix/header_checks
header_checks = regexp:/etc/postfix/header_checks
EOF

# https://major.io/2013/04/14/remove-sensitive-information-from-email-headers-with-postfix/
cat <<-EOF > /etc/postfix/header_checks
/^Received:.*with ESMTPSA/ IGNORE
/^X-Originating-IP:/ IGNORE
/^X-Mailer:/ IGNORE
/^Mime-Version:/ IGNORE
EOF

cat <<-EOF >> /etc/postfix/master.cf
Expand Down