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#
# $config_directory/login-maps.pcre
# Postfix: smtpd_sender_login_maps
#
# Lookup table with the SASL login names that own the sender
# (MAIL FROM) addresses.
#
# NOTE:
# Add "reject_sender_login_mismatch" to $smtpd_sender_restrictions .
#
# NOTE
# ----
# By default an SMTP client may specify *any* envelope sender address
# in the "MAIL FROM" command, because the server only knows the remote
# client's hostname and IP address, but not the user who controls the
# remote client.
# But the Postfix SMTP server knowns who the sender is once the SASL
# authentication is used. This table file provides the maps betwee
# envelope sender addresses and SASL login names, which is used by the
# server to decide if the SASL authenticated client is allowed to use
# a particular envelope sender address.
#
# References:
# * Postfix SASL HOWTO - Envelope sender address authorization
# http://www.postfix.org/SASL_README.html#server_sasl_authz
#
# Enforce that user can only send from their own sender address.
# Credit: https://serverfault.com/a/710235/387898
#
# Envelope sender | Owner (SASL login names)
# ---------------------------------------------------------------------
/^(.*)$/ ${1}
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