PGNet Dev: > currently, my config does include > > smtpd_helo_required = yes > smtpd_helo_restrictions = > permit_mynetworks > check_helo_access pcre:${config_directory}/helo_access.pcre > reject_invalid_helo_hostname > reject_non_fqdn_helo_hostname > permit > > is adding to head of helo_access.pcre > > /.*\.outbound\.protection\.outlook\.com/ OK
That should be safe, because the OK here cannot affect how a recipient will be evaluated. Wietse