>>>>> On April 10, 2022 Viktor Dukhovni <postfix-us...@dukhovni.org> wrote:
> On Sun, Apr 10, 2022 at 02:27:33PM -0400, Greg Klanderman wrote: >> Quick question, what is the correct syntax to match an empty sender in >> a hash: sender access map (i.e. check_sender_access)? > This is naturally documented in access(5), and also in postconf(5) > under: > smtpd_null_access_lookup_key (default: <>) > The lookup key to be used in SMTP access(5) tables instead of the > null sender address. Thank you Viktor, I had searched access(5) for 'blank' and 'empty' but not 'null'. Greg
