#  query to find which domains we accept mail for
    virtual_mailbox_domains = pgsql:/etc/postfix/virtual_mailbox_domains.cf

    # query to find which email addresses we accept mail for
    virtual_mailbox_maps = pgsql:/etc/postfix/virtual_mailbox_maps.cf




    ######
    # disable aliases for now, just for testing

    # query to find a user's email aliases
    #virtual_alias_maps = pgsql:/etc/postfix/virtual_alias_maps.cf


    virtual_alias_domains =
    #alias_maps = hash:/etc/aliases
    #alias_database = hash:/etc/aliases

localhost postfix/master[30377]: terminating on signal 15
    localhost postfix/postfix-script[30489]: starting the Postfix mail system
    localhost postfix/master[30491]: daemon started -- version 3.3.1, configuration /etc/postfix

    localhost postfix/smtpd[30495]: error: open database /etc/aliases.db: No such file or directory # <----- WHY?????? Why not in Postgresql?

    localhost postfix/smtpd[30495]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled
    localhost postfix/smtpd[30495]: connect from sender-of-o51.AAABBBCCC.com[11.22.33.44]
    localhost postfix/trivial-rewrite[30499]: warning: pgsql query failed: fatal error from host localhost: ERROR:  column "value" does not exist?LINE 1: select 1 from domains where value = 'my_original_good_email@gmail.com'?                                    ^?
    localhost postfix/trivial-rewrite[30499]: warning: virtual_mailbox_domains: pgsql:/etc/postfix/virtual_mailbox_domains.cf: table lookup problem
    localhost postfix/trivial-rewrite[30499]: warning: virtual_mailbox_domains lookup failure
    localhost postfix/trivial-rewrite[30499]: warning: virtual_mailbox_domains: pgsql:/etc/postfix/virtual_mailbox_domains.cf: table lookup problem
    localhost postfix/trivial-rewrite[30499]: warning: virtual_mailbox_domains lookup failure
    localhost postfix/trivial-rewrite[30499]: warning: virtual_mailbox_domains: pgsql:/etc/postfix/virtual_mailbox_domains.cf: table lookup problem
    localhost postfix/trivial-rewrite[30499]: warning: virtual_mailbox_domains lookup failure
    localhost postfix/smtpd[30495]: NOQUEUE: reject: RCPT from sender-of-o51.AAABBBCCC.com[11.22.33.44]: 451 4.3.0 <my_original_good_email@gmail.com>: Temporary lookup failure; from=<my_original_good_email@gmail.com> to=<mail1@my_postfix_email_server.com> proto=ESMTP helo=<sender-of-o51.AAABBBCCC.com>
    localhost postfix/smtpd[30495]: disconnect from sender-of-o51.AAABBBCCC.com[11.22.33.44] ehlo=2 starttls=1 mail=1 rcpt=0/1 quit=1 commands=5/6