smtpd_sender_login_maps (default: empty)

    Optional lookup table with the SASL login names that own the sender (MAIL FROM) addresses.
    ...

/^(.*)$/   ${1}

# Relay control (Postfix 2.10 and later): local clients and
# authenticated clients may specify any destination domain.
smtpd_sender_login_maps=pcre:/etc/postfix/login_maps
smtpd_relay_restrictions = permit_mynetworks,
    reject_sender_login_mismatch,
    permit_sasl_authenticated,
    reject_unauth_destination

NOQUEUE: reject: RCPT from mail-oln040092064102.outbound.protection.outlook.com[40.92.64.102]: 553 5.7.1 me@hotmail.com: Sender address rejected: not logged in; from=me@hotmail.com to=chazy@domain.com proto=ESMTP helo=<EUR01-DB5-obe.outbound.protection.outlook.com>

user1@domain.com    user1@domain.com
user1@another.com   user1@another.com
etc...