On Tue, Jun 26, 2018 at 04:47:57PM -0400, Wietse Venema wrote: > > Out: 451 4.3.0 Error: queue file write error > You have "notify_classes = ... bounce ..." somewhere, otherwise > you would not receive the above SMTP session recording. > > Try: postconf -P | grep notify_classes
Are you sure this does not fall into the resource class? | static int data_cmd(SMTPD_STATE *state, int argc, SMTPD_TOKEN *unused_argv) | { […] | } else if ((state->err & CLEANUP_STAT_WRITE) != 0) { | state->error_mask |= MAIL_ERROR_RESOURCE; Only the log will show the real reason. Bastian -- Ahead warp factor one, Mr. Sulu.