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Merge pull request #463 from PortableTech/master 

outgoing_mail_header_filters use local hostname and ip
This commit is contained in:
Joshua Tauberer 2015-07-11 17:21:55 -04:00
parent a91995f0a7 07beef3db2
commit 5f17abc856
2 changed files with 7 additions and 1 deletions
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2
conf/postfix_outgoing_mail_header_filters
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@ -1,7 +1,7 @@
# Remove the first line of the Received: header. Note that we cannot fully remove the Received: header
# because OpenDKIM requires that a header be present when signing outbound mail. The first line is
# where the user's home IP address would be.
/^\s*Received:[^\n]*(.*)/ REPLACE Received: from authenticated-user (unknown [127.0.0.1])$1
/^\s*Received:[^\n]*(.*)/ REPLACE Received: from authenticated-user (PRIMARY_HOSTNAME [PUBLIC_IP])$1
# Remove other typically private information.
/^\s*User-Agent:/ IGNORE

6
setup/mail-postfix.sh
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@ -93,6 +93,12 @@ tools/editconf.py /etc/postfix/master.cf -s -w \
# Install the `outgoing_mail_header_filters` file required by the new 'authclean' service.
cp conf/postfix_outgoing_mail_header_filters /etc/postfix/outgoing_mail_header_filters
# Modify the `outgoing_mail_header_filters` file to use the local machine name and ip
# on the first received header line. This may help reduce the spam score of email by
# removing the 127.0.0.1 reference.
sed -i "s/PRIMARY_HOSTNAME/$PRIMARY_HOSTNAME/" /etc/postfix/outgoing_mail_header_filters
sed -i "s/PUBLIC_IP/$PUBLIC_IP/" /etc/postfix/outgoing_mail_header_filters
# Enable TLS on these and all other connections (i.e. ports 25 *and* 587) and
# require TLS before a user is allowed to authenticate. This also makes
# opportunistic TLS available on *incoming* mail.