sender when checking recipients. If used indiscriminately, it reduces the
usefulness of callout caching.
sender when checking recipients. If used indiscriminately, it reduces the
usefulness of callout caching.
if the use_sender option is used,
if neither the random nor the use_postmaster option is used,
and if no other callouts intervene.
if the use_sender option is used,
if neither the random nor the use_postmaster option is used,
and if no other callouts intervene.