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Guard against SMTP smuggling 

This short-term workaround is recommended at https://www.postfix.org/smtp-smuggling.html:

    smtpd_data_restrictions=reject_unauth_pipelining
This commit is contained in:
Joshua Tauberer 2023-12-22 08:53:48 -05:00
parent 8e4e9add78
commit faf23f150c
1 changed files with 5 additions and 0 deletions
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5
setup/mail-postfix.sh
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@ -69,6 +69,11 @@ tools/editconf.py /etc/postfix/main.cf \
maximal_queue_lifetime=2d \ maximal_queue_lifetime=2d \
bounce_queue_lifetime=1d bounce_queue_lifetime=1d
# Guard against SMTP smuggling
# This short-term workaround is recommended at https://www.postfix.org/smtp-smuggling.html
tools/editconf.py /etc/postfix/main.cf \
smtpd_data_restrictions=reject_unauth_pipelining
# ### Outgoing Mail # ### Outgoing Mail
# Enable the 'submission' ports 465 and 587 and tweak their settings. # Enable the 'submission' ports 465 and 587 and tweak their settings.