1 files changed, 6 insertions, 1 deletions
diff --git a/lib/PublicInbox/LeiToMail.pm b/lib/PublicInbox/LeiToMail.pm
index a1dce550..8e58ad11 100644
--- a/lib/PublicInbox/LeiToMail.pm
+++ b/lib/PublicInbox/LeiToMail.pm
@@ -247,11 +247,16 @@ sub _mbox_write_cb ($$) {
          $dedupe->prepare_dedupe;
          sub { # for git_to_mail
                  my ($buf, $oid, $kw) = @_;
+                return unless $out;
                  my $eml = PublicInbox::Eml->new($buf);
                  if (!$dedupe->is_dup($eml, $oid)) {
                          $buf = $eml2mbox->($eml, $kw);
                          my $lk = $ovv->lock_for_scope;
-                        $write->($out, $buf);
+                        eval { $write->($out, $buf) };
+                        if ($@) {
+                                die $@ if ref($@) ne 'PublicInbox::SIGPIPE';
+                                undef $out
+                        }
                  }
          }
  }